Canonical page for linear solenoid actuator + aliases “12v linear solenoid actuator”, “12V DC / 12V / 120V solenoid actuator”, and “110V linear solenoid”

12V linear solenoid actuator fit checker + 12V DC / 120V / 110V decision report

If you searched for a 12v linear solenoid actuator plus alias phrasing like 12v dc / 12V / 120V solenoid actuator or 110V linear solenoid, the real engineering task is not just selecting a voltage label. You need duty-proof, force-at-stroke margin, and a fixed drive architecture before buying.

This single URL answers both linear solenoid actuator and voltage-specific alias intent. Bookmark this canonical 12v linear solenoid actuator fit checker to avoid duplicate-page split and thin rewrites.

Start the fit check Send engineering inputs

Tool-first check

12V / 120V / 110V linear solenoid fit checker

Screen 12 V low-voltage and 120 V / 110 V class solenoid requests for voltage alignment, duty headroom, force-at-stroke margin, and drive architecture before RFQ. This is a decision aid, not a compliance certificate.

Quick presets

Start from a close preset, then edit to match the exact part, cycle, and force-at-stroke target.

Coil rated voltage (V)

Nameplate value for the exact actuator coil.

Actual supply voltage (V)

Enter measured operating voltage, not nominal panel label.

On-time per cycle (s)

Off-time per cycle (s)

Required stroke (mm)

Ambient (°C)

Required force (N)

Catalog force at that stroke (N)

Published operating mode

Keep this conservative when supplier ED/S1 data is missing.

Drive architecture

Architecture changes response, noise, and switching stress.

Is this a safety-critical or power-fail-hold requirement?

Safety-critical inputs force conservative output by design.

Drive-type quick hints

Direct AC coil drive: Typical 110/120 VAC class coil with AC pickup behavior.
AC + bridge rectifier: AC source converted before the coil for steadier DC current.
AC + half-wave rectifier: Lower cost path but more ripple and acoustic/force drift risk.
Regulated DC driver: Dedicated DC supply path with suppression design review.
Unknown drive architecture: Use when only nameplate voltage is known.

Result

Run the checker to get a decision-ready output.

Output includes pass/fail logic, explanation, and a concrete next action. It does not replace part-level compliance validation.

Empty state

Default values model a moderate-duty 120 V class actuator case. Use the preset buttons above for 12 V DC or 110 V starts, then edit voltage, duty, and force-at-stroke to match your own part.

Duty formula

On / Total

Required duty = on-time / (on + off)

Force margin

Catalog / Need

Target >= 1.2x for healthier margin

Next action

Request engineering review Jump to source-backed evidence

Jump to report sections

12V linear solenoid actuator + 12V DC / 120V / 110V checker Key conclusions + numbers Use / not-use audience map Worked screening example Stage1b gap audit Boundary map + counterexamples Compliance boundaries Drive path comparison Risk and tradeoffs Evidence ledger FAQ Related learn pages

Published April 5, 2026Research reviewed May 9, 2026Next scheduled review November 9, 2026

Stage1b enhancement completed with multi-source evidence updates (LVD + EMC + ATEX + RoHS + GPSR boundaries, OSHA/NRTL acceptance path, 12V transient-envelope evidence, cross-vendor duty/force counterexamples, and EIA-backed OPEX screening context), including explicit 12V + 120V + 110V alias coverage and hazardous-location gating. Review cycle is every 6 months.

37 public technical sources reviewedResearch reviewed May 9, 20266-month refresh cadence with dated evidence ledgerCanonical alias merge verified for 12v linear solenoid actuator + 12V DC / 120V / 110V intent

Core test

Voltage + duty + stroke force margin

Common mistake

Treating voltage keywords as full decision proof

Approval gap

Drive path + ED + force-at-stroke basis

Core Conclusions

What changed in this round: source-backed boundaries for 12v linear solenoid actuator + 12V / 120V / 110V intent

These conclusions are designed for procurement and engineering sign-off, not glossary-level explanation.

Range A 114-126 V

12V DC / 12V / 120V / 110V solenoid actuator queries are voltage classes, not standalone selection rules

Pacific Power engineering handbook 1C.2.1 (published November 26, 2024) reproduces ANSI C84.1 service ranges. 110V/120V queries should be screened against a line window, not a fixed single value.

LVD starts at 50 VAC / 75 VDC

Regulatory scope diverges between 12 V and 110 V classes

European Commission LVD scope states 50-1000 VAC and 75-1500 VDC. 110 V paths are inside LVD scope while 12 V paths are outside and generally handled through other product-safety routes.

EMCD 2014/30/EU still applies

LVD out-of-scope does not mean compliance out-of-scope

European Commission EMC guidance states apparatus and fixed installations must meet EMC requirements when placed on the market and/or taken into service, including low-voltage equipment.

RoHS covers EEE components unless excluded

Low-voltage variants still need EU material-compliance checks

European Commission RoHS guidance states all products with electrical/electronic components are in scope unless specifically excluded, so “below LVD” is not a substance-compliance exemption.

GPSR (EU) 2023/988 applies from 13 Dec 2024

General product-safety timeline changed after 2024

European Commission GPSR standards page confirms the new regulation replaced the old GPSD timeline, which matters when low-voltage actuator products are sold into consumer-facing channels.

2014/34/EU + 1999/92/EC

Explosive-atmosphere sites add a separate EU ATEX path

European Commission ATEX guidance keeps equipment obligations (2014/34/EU, applicable since April 20, 2016) separate from workplace obligations under Directive 1999/92/EC; this boundary applies even when voltage class is already screened.

1910.399 + 1910.7 reference path

US installation acceptance is tied to the OSHA NRTL route

OSHA 1910.399 defines “acceptable” around listed/labeled/certified equipment using NRTL logic, and OSHA NRTL product references map electrical equipment checks back to 1910.303 and 1910.307.

12/24/110/230/400 VAC

AC solenoid families explicitly include 110 V options

Kendrion publishes this supply-voltage set for AC linear solenoids, which confirms 110 V intent should stay on one canonical page rather than a separate route.

5-100% duty

Duty is an independent approval axis

Kendrion lists duty windows separately from voltage. A 110 V label alone does not certify continuous operation.

35°C=1.0; 50°C=0.8; 80°C=0.5

DC duty approval depends on reference temperature

Magnet-Schultz G XX guidance provides conversion factors versus reference temperature. A catalog ED value cannot be used unchanged at elevated thermal conditions.

Up to ~2 kV at 110 V

Suppression choice changes release behavior and stress

Kendrion technical notes warn that direct-DC-side switching can generate high deactivation overvoltage and that free-wheeling diodes increase release delay significantly.

Up to 70% lower hold power

Peak/hold control is a practical thermal-risk lever

TI reference design TIDA-00289 reports up to 70% power reduction by moving from pull-in peak current to lower hold current after plunger movement.

3-36 V operation + 42 V transient test context

Nominal 12V labels can hide much wider electrical stress windows

TI TIDA-01179 is built for 12V automotive environments with ISO 7637-2 / ISO 16750-2 transient context and validates operation from 3 to 36 V DC plus 42 V transient tests; SSZT243 also shows pulse-1 negatives beyond -100 V and load-dump examples near 35 V.

90% Uₙ, ±10%

Force claims are conditional on stroke and tolerance basis

Magnet-Schultz force data is measured at 90% rated voltage and allows up to ±10% force spread, so catalog numbers need margin before release.

90% Uₙ + warmed + 70% load

Catalog duty/force values depend on a declared test baseline

Kendrion and Magnet-Schultz datasheets tie force and duty values to explicit test states. Cross-family comparisons without baseline normalization create false pass decisions.

Example B41: 2.7 lbf (100% ED) vs 11.0 lbf (25% ED)

Linear-solenoid force can shift by multi-x across duty mode

Johnson Electric open-frame catalog and Ledex tubular datasheets show force/power values are strongly duty and stroke dependent, and recommend a 1.3-1.5 design safety factor instead of using headline force directly.

H-Line examples: IP00, thermal class E(120) / B(130)

Ingress and insulation class are not implied by voltage

Kendrion H-Line overview shows open-frame baseline conditions and insulation classes that must be matched to system enclosure and ambient assumptions before PO release.

OSHA 1910.303 boundary

US installation reviews require approval and listing-use alignment

OSHA 1910.303 requires approved equipment and installation/use aligned with listing or labeling instructions; this check is independent from keyword voltage intent.

OSHA 1910.307 + class/group/temperature coding

Hazardous-location use requires a different approval path

OSHA 1910.307 requires equipment in classified locations to be approved for the location, and marking includes class, group, and operating-temperature code based on 40°C ambient unless another ambient is marked.

Scope note: ordinary locations, ≤600 V

UL 429 scope is not a blanket hazardous-location approval

UL 429 product detail scope covers electrically operated valves up to 600 V for ordinary locations and points hazardous-location compartments to UL 913 / UL 121201 paths.

ASCO example: 40 VA inrush / 16 VA hold

Coil electrical load is dynamic instead of single-number

ASCO 210 catalog tables show large pickup-versus-hold gaps for AC coils, so PSU and protection sizing must be validated for inrush conditions, not hold only.

Up to 80% + ~500 ms switch

Kick-and-drop savings are real but path-specific

Bürkert reports up to 80% energy reduction and around 500 ms pull-in-to-hold switching for dual-coil architecture. Treat this as a validated design option, not a universal default.

Parker Chart 8 at 22 W

12 V and 120 V can share family hardware but diverge in compliance options

Parker Chart 8 public rows include both 12.0 V and 120/60, 110/50 entries with different ingress/certification packaging, so selection must follow exact coil-code evidence.

Danfoss: UL-approved coils from 110 to 240 V, 50/60 Hz

Cross-vendor voltage classes exist, but not as generic substitutes

Danfoss HVACR coil page states UL-approved series and availability across 110-240 V at 50/60/50-60 Hz. Treat this as architecture options that still need part-code-level validation.

EIA 2024 U.S. average: 12.94¢/kWh

Energy-cost screening should be duty-weighted before architecture lock

EIA Table 4 reports U.S. average electricity prices (commercial 12.75¢/kWh, industrial 8.13¢/kWh). In high-duty fleets, small per-coil watt deltas compound into measurable OPEX and should be screened early.

Decision Q&A

Fast answers for “linear solenoid” plus alias searches like “12v linear solenoid actuator”, “12V/120V solenoid actuator”, and “110V linear solenoid”.

Are “12v linear solenoid actuator”, “12v dc solenoid actuator”, “12 volt solenoid actuator”, “120v solenoid actuator”, or “110v linear solenoid” separate topics from “linear solenoid”?

No. These are voltage-specific aliases under the same decision flow, so one canonical URL is the safer structure.

Why it matters: Splitting into duplicate pages weakens both user clarity and canonical signals.

Is a “120v solenoid actuator” request different from “110v” at screening stage?

Usually no for first-pass screening. Treat both as one 110/120 V class workflow, then validate measured line window, rated frequency, and exact coil code.

Why it matters: Procurement errors happen when 120 V is treated as a fixed label instead of a tolerance + frequency + certification decision.

Does a “12v dc solenoid actuator” query still need duty and force-at-stroke proof?

Yes. Voltage wording alone cannot approve thermal behavior, force margin, or architecture fit.

Why it matters: The tool-first workflow is the same whether the request starts from 12 V DC or 110 V wording.

Can I approve a 110v actuator from voltage + catalog force only?

No. You still need operating mode (ED/S1), force-at-stroke basis, and real drive architecture evidence.

Why it matters: Voltage class alone cannot prove thermal and dynamic suitability.

Why is 110v wiring often still a 120 V tolerance discussion?

Because the practical line window is handled as a range, not a single fixed number.

Why it matters: Measured supply can be high/low enough to change force and coil temperature margins.

Can one compliance evidence pack cover both 12 V and 110 V variants?

Usually no. Public regulatory scope boundaries indicate these voltage classes can require different compliance paths.

Why it matters: Mixing evidence too early creates late-stage certification and release delays.

If 12 V is outside LVD, can I skip EU compliance checks entirely?

No. EMC Directive 2014/30/EU still applies to equipment that can emit or be affected by electromagnetic disturbance when it is placed on the market or taken into service.

Why it matters: LVD scope split is only one boundary; skipping EMC evidence is a common late-stage failure mode.

If a 12 V actuator is outside LVD scope, can I ignore RoHS or general product-safety obligations?

No. European Commission RoHS guidance still covers products with electrical/electronic components unless excluded, and GPSR (EU) 2023/988 applies from December 13, 2024 for general product-safety framing.

Why it matters: Teams that stop at LVD screening can still fail market-access checks on material and product-safety documentation.

If deployment is in an EU explosive atmosphere, are LVD + EMC checks enough?

Usually no. European Commission ATEX guidance separates equipment obligations under Directive 2014/34/EU from workplace obligations under Directive 1999/92/EC.

Why it matters: Explosive-atmosphere projects can fail late if ATEX equipment/workplace duties are not gated early.

For US installation, is voltage matching enough without listing-use evidence?

No. OSHA 1910.303 requires approved equipment and says listed/labeled equipment must be installed and used per listing instructions.

Why it matters: A technically matching coil can still fail installation or audit if listing-use alignment is undocumented.

For US workplaces, can CE/ATEX paperwork alone be treated as “acceptable equipment”?

Not by default. OSHA 1910.399 defines “acceptable” using listed/labeled/certified pathways tied to recognized testing logic (1910.7).

Why it matters: Cross-region certificate assumptions can break US acceptance if the required listing/certification pathway is missing.

Can I place a UL 429 valve-style solenoid in a hazardous location without extra checks?

Not by default. UL 429 scope notes ordinary locations and points hazardous-location compartments to UL 913 / UL 121201 paths; OSHA 1910.307 also requires equipment approved for the classified location.

Why it matters: A voltage/duty pass can still fail site acceptance if hazardous-location classification and marking are not matched.

Is an IP rating enough to claim a matching NEMA enclosure type?

No. NEMA guidance states IP and NEMA types are not exact one-to-one conversions.

Why it matters: Environmental mismatch risk increases when procurement relies on shorthand cross-mapping.

When should I reject a generic 110v actuator path immediately?

Reject for safety-critical hold-through-power-loss or dropped-load risk without dedicated compliance architecture.

Why it matters: These cases demand system-level safety logic, not only a coil-level check.

If a datasheet says 100% ED, is that always valid at hotter reference temperatures?

No. Public DC guidance shows temperature-dependent conversion factors, so usable duty can shrink as reference temperature rises.

Why it matters: Ignoring this boundary causes thermal surprises during sustained field operation.

Can suppression be ignored if nominal voltage and force already pass?

No. Suppression topology affects switch-off stress and release timing, which changes risk even when static force looks acceptable.

Why it matters: Architecture decisions are part of procurement readiness, not post-install tuning.

Can I size power and protection from hold power only for AC solenoids?

No. Public coil tables show pickup (inrush) can be much higher than hold, so under-sized supply/protection can fail at pull-in.

Why it matters: Inrush under-sizing creates intermittent startup failures even when steady-state hold readings look acceptable.

If the product is called “12V”, can I skip transient checks in vehicle-powered designs?

No. TI transient references for ISO 7637-2 / ISO 16750-2 context show 12V systems can include deep negative pulses and load-dump peaks far above nominal rail values.

Why it matters: Without transient gating, driver/protection choices can pass bench checks but fail in field power events.

Can I use one headline force value across all duty settings?

No. Johnson Electric public rows show large duty-dependent force spread (for example B41 open-frame: 2.7 lbf at 100% duty versus 11.0 lbf at 25% duty at nominal stroke).

Why it matters: Ignoring duty-linked force behavior leads to false pass decisions in actuator sizing.

How should I turn architecture power differences into procurement cost impact?

Use duty-weighted kWh math with a published tariff benchmark. EIA 2024 U.S. average is 12.94¢/kWh (commercial 12.75¢, industrial 8.13¢).

Why it matters: Without a cost baseline, small per-coil power deltas get ignored until fleet OPEX drifts after deployment.

Can a 50 Hz-rated AC coil be used at 60 Hz without revalidation?

Not by default. Kendrion technical explanations state force can drop by about 30% at higher frequency for 50 Hz coil designs, and lower frequency use increases heating.

Why it matters: Frequency mismatch can invalidate force and thermal margins even when voltage labels look correct.

Key numbers

All numbers below are tied to public source statements.

Signal	Number	Why this matters
ANSI C84.1 Range A (120 V class service)	114 V to 126 V	Pacific Power engineering handbook 1C.2.1 (published November 26, 2024) lists 114/228 to 126/252 for 120/240 service, aligned with ANSI C84.1 range framing.
ANSI C84.1 Range B (120 V class service)	110 V to 127 V	The same handbook lists 110/220 to 127/254 as broader boundary values for 120/240 service.
EU LVD applicability window	50-1000 VAC / 75-1500 VDC	European Commission LVD scope for Directive 2014/35/EU (applicable since April 20, 2016).
EU EMC directive legal timeline	Published 29 Mar 2014; transition date 20 Apr 2016	European Commission EMC page states Directive 2014/30/EU repealed 2004/108/EC from April 20, 2016 and keeps equipment EMC obligations active.
EU ATEX equipment directive timeline	Directive 2014/34/EU applicable from 20 Apr 2016	European Commission ATEX page lists the equipment directive timeline and points to current guidance (sixth-edition guidelines issued January 2026).
EU ATEX workplace complement	Directive 1999/92/EC	The same ATEX page links workplace obligations separately from equipment-law obligations, which prevents “one directive covers all” assumptions.
EU RoHS scope reminder	In force since 21 Jul 2011; EEE components in scope unless excluded	European Commission RoHS page states all products with electrical/electronic components are covered unless explicitly excluded.
EU GPSR transition marker	Regulation (EU) 2023/988 applies from 13 Dec 2024	European Commission GPSR standards page confirms the new regulation replaced the old General Product Safety Directive timeline.
US Class 1 power-limited threshold (OSHA 1910.308)	≤30 V and ≤1000 VA	OSHA 1910.308(c)(1)(i) definition; helps separate low-voltage control assumptions from 110 V mains-class paths.
US installation boundary for exposed live parts (OSHA 1910.303)	Guarding required at 50 V or above	OSHA 1910.303 requires guarding against accidental contact for live parts at 50 V or more, adding an installation boundary beyond keyword voltage labels.
US hazardous-location marking baseline (OSHA 1910.307)	Class / group / operating temperature code at 40°C ambient	OSHA 1910.307 requires equipment in hazardous (classified) locations to be approved for that location and uses class/group/temperature identification with 40°C ambient baseline unless otherwise marked.
US “acceptable equipment” pathway	OSHA 1910.399 references 1910.7 NRTL route	OSHA definitions tie “acceptable” electrical equipment to listed/labeled/certified logic, so listing path evidence must match workplace acceptance expectations.
UL 429 scope boundary	Electrically operated valves, rated 600 V or less, ordinary locations	UL 429 product detail scope states ordinary-location use and points hazardous-location compartments to UL 913 / UL 121201 routes.
Published AC supply classes	12 / 24 / 110 / 230 / 400 VAC	Kendrion AC linear solenoids listing.
AC linear duty window	5% to 100% duty	Published separately from voltage on Kendrion page.
DC thermal conversion factors	35°C=1.0; 50°C=0.8; 80°C=0.5	Magnet-Schultz G XX reference-temperature conversion table for duty evaluations.
Example inrush vs holding	55 VA inrush / 26 VA hold	Danfoss 14 W AC coil table example (M2, 110 V/50 Hz line item).
ASCO coil load spread example	40 VA inrush / 16 VA hold (F-6.1)	ASCO 210 (8210) catalog electrical table shows pickup-versus-hold spread for AC coils.
ASCO standard AC coil voltage classes	120 / 240 / 480 VAC at 60 Hz; 110 / 220 VAC at 50 Hz	ASCO 210 catalog general notes list these standard AC classes for coil selection.
ASCO ambient split by coil type	AC: 0 to 52°C; DC: 0 to 40°C	ASCO 210 catalog temperature range table differs for RedHat AC and RedHat DC coils.
Danfoss ambient boundary examples	-40 to +80°C (10/12 W AC NC); -40 to +50°C (20 W DC)	Danfoss EVR V2.0 technical leaflet ambient ranges differ by coil family and power.
Danfoss permissible voltage variation examples	+10/-15% (10 W AC), +10/-10% (20 W DC)	Same leaflet shows voltage-tolerance windows differ by coil family.
Danfoss HVACR coil class range + approval note	UL-approved; available 110-240 V at 50/60/50-60 Hz	Danfoss HVACR solenoid coil series page lists UL approval and broad voltage/frequency class availability.
Kendrion force baseline normalization	90% Uₙ basis; ≈+20% at rated voltage	Kendrion High Performance technical explanations state force is safely reached at 90% rated voltage and maximum warming, and listed values rise by about 20% at rated voltage.
Kendrion duty-cycle long-on threshold	If on-time exceeds 180 s, move to 100% ED	Kendrion duty-cycle table and notes require selecting the next higher relative duty class, and above 180 s on-time the 100% duty route is required.
Kendrion AC frequency mismatch warning	Higher frequency can cut force by ~30%	Kendrion technical explanations state 50 Hz coil designs may lose approximately 30% force at higher frequency; lower frequency increases heating.
Magnet-Schultz FMME baseline (Stand 012025)	24 VDC ±10%, S1 100%, 40°C ref, ±10% force spread	FMME+FMTX datasheet ties force values to 90% rated voltage and normal operating temperature with explicit reference assumptions.
Switch-off stress warning (direct DC-side)	≈2 kV at 110 V (≈4 kV at 230 V)	Kendrion technical explanations on deactivation overvoltage risk without suitable suppression.
Peak/hold driver efficiency lever	Up to 70% lower hold power	TI TIDA-00289 reports power reduction with peak-current pull-in then hold-current control.
Example DRV110 tuning in TI design guide	1 A peak, 224 mA hold (~68% cut)	TI TIDU578 example register settings show practical magnitude for hold-current reduction.
DRV110 high-voltage input resistor guidance	100 kΩ for 110-120 VAC; 200 kΩ for 220-240 VAC	TI DRV110 datasheet recommends series current-limiting resistor values for mains-derived input paths and requires recirculation-diode planning.
Automotive 12V design envelope (reference front-end)	3-36 V DC operation; transient tests up to 42 V	TI TIDA-01179 reference design in ISO 7637-2 / ISO 16750-2 context highlights why “12V” can require wide transient headroom.
Automotive pulse boundary examples	Pulse 1 can be ≤ -100 V; load dump examples near +35 V	TI SSZT243 article summarizes transient conditions that exceed nominal 12V rails and can break unprotected actuator-driver assumptions.
Bürkert kick-and-drop transition example	Switch to hold after ~500 ms	Bürkert energy-saving dual-coil description uses short pull-in pulse before hold-current operation.
Bürkert published energy/thermal claim	Up to 80% lower power; up to 45 K less self-heating	Vendor-published performance for kick-and-drop architecture; treat as family-specific until mechanism-level validation is complete.
Energy-cost benchmark for OPEX screening	EIA 2024 U.S. average 12.94¢/kWh	EIA Table 4 reports commercial 12.75¢/kWh and industrial 8.13¢/kWh; use this as a baseline when comparing duty-weighted architecture options.
Near-term electricity-price trend check	EIA STEO Apr 2026: 13.63¢/kWh (2025) to 14.21¢/kWh (2026)	Short-term outlook helps keep architecture-level cost comparisons from using stale tariff assumptions.
Parker Chart 8 cross-voltage row examples	12.0 V and 120/60, 110/50 entries at 22 W	Parker Chart 8 public product data shows same chart family spanning low-voltage and mains-class options with variant-specific ingress/certification details.
Published ingress / enclosure boundaries	IP40 standard, IP54 option, connector up to IP65	Kendrion high-performance and heavy-duty public specifications vary by series and connector choice.
Open-frame integration baseline (H-Line examples)	IP00; thermal class E(120)/B(130); ED up to 100%	Kendrion H-Line overview shows that ingress and insulation class need explicit system-level matching; voltage label alone does not capture enclosure/thermal limits.
Johnson open-frame design margin guidance	Recommended force safety factor: 1.3 to 1.5	Johnson Electric Ledex catalog recommends explicit force reserve and lists force at 20°C with a defined duty-cycle equation.
Duty-dependent force spread example (Johnson B41)	2.7 lbf at 100% ED vs 11.0 lbf at 25% ED	Johnson open-frame catalog table demonstrates that duty class can dominate delivered force at nominal stroke.
Stroke-loss illustration (Ledex tubular 100 push)	22.86 N at 0 mm vs 1.22 N at 15.24 mm (100% ED)	Johnson tubular datasheet highlights steep force decay with stroke even in the same coil family.
NEMA enclosure standard voltage scope	Enclosures for electrical equipment up to 1000 V	NEMA EN 10250-2024 scope statement.
Force tolerance framing	Measured at 90% Uₙ; ±10%	Magnet-Schultz GTA datasheet force-basis notes.

Suitable vs not-suitable audience map

Use this table to decide whether this checker can drive your next action or whether you need a different validation path.

Audience segment	Fit status	Why	Minimum next path
Automation buyer with measured 12 V rail under load	Suitable	The checker can screen voltage alignment, duty, and force-at-stroke with explicit pass/fail boundaries.	Keep loaded-voltage records, ED/S1 statement, and stroke-specific force table in RFQ package.
Procurement comparing 12 V and 120/110 V variants in one mechanism	Suitable with boundary review	This page highlights LVD/EMC scope split, architecture tradeoffs, hazardous-location boundaries, and source-backed tolerance limits.	Split compliance evidence packs by voltage class, then rejoin at mechanism-level acceptance criteria.
Engineer validating duty at elevated ambient	Suitable	Result logic includes duty headroom, DC reference-temperature conversion, and boundary-state escalation.	Record ambient basis and derating method; do not ship with nominal duty only.
Safety-critical hold-through-power-loss design	Not suitable for direct approval	Tool intentionally blocks blanket approval for dropped-load or life-safety scenarios.	Move to architecture-level safety review with failure-mode and compliance evidence before PO release.
Team without part-level duty statement	Not suitable until data is added	Missing ED/S1 claims trigger a controlled needs-data result instead of a false pass.	Collect part-number-specific duty mode and ambient basis, then rerun the screen.
Project relying on generic “IP equals NEMA” wording	Not suitable until normalized	Public guidance states IP and NEMA are not one-to-one mappings, so direct substitution is risky.	Build a side-by-side ingress matrix for the exact actuator + connector configuration.
Project installed in hazardous (classified) location	Not suitable for direct approval	OSHA 1910.307 and UL 429 scope notes show ordinary-location assumptions are insufficient for classified-area deployment.	Escalate to classified-location approval path with class/group/temperature-marking verification before RFQ release.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.308 special systems (Class 1/2/3 circuit limits)OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)UL 429 product detail page (scope + revision markers)NEMA EN 10250-2024 enclosure scope (up to 1000 V)NEMA enclosure type vs IEC 60529 IP comparison bulletin TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)ASCO 210 (8210) general service solenoid valve catalog Parker Chart 8 solenoid coils product series data Bürkert kick-and-drop dual-coil technology page Pacific Power engineering handbook 1C.2.1 (ANSI C84.1 service voltage ranges)Kendrion AC linear solenoids product page Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion H-Line single-stroke linear solenoid overview Danfoss coil technical leaflet (inrush/holding + voltage variation)Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Magnet-Schultz GTA datasheet (force/stroke + duty basis)Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)Johnson Electric Ledex open-frame DC solenoid catalog Johnson Electric Ledex tubular solenoid 100 push datasheet U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Worked Example

One screening walkthrough for 12v linear solenoid actuator and 12V / 120V procurement

This example shows how the checker turns a voltage-keyword request into a release decision with explicit pass/fail boundaries.

Example review log (engineering screen)

Use this as a template for RFQ-ready evidence capture.

Checkpoint	Sample input	Decision boundary	Release decision
Request snapshot	Alias query: "120v solenoid actuator". Mechanism asks for 18 N at 6 mm stroke, 3 s ON / 12 s OFF, 45°C ambient.	Treat as canonical solenoid-actuator flow, then screen voltage window + duty + force-at-stroke + drive path.	Continue review on canonical page (no alias route split).
Voltage and duty screen	Measured rail 12.3-12.7 V under load; target duty 20%. Thermal review uses 50°C reference factor (0.8) as conservative guardrail.	Static nameplate value is insufficient. Duty acceptance must include measured window plus thermal derating basis.	Pass with condition: duty statement and ambient basis must stay in RFQ.
Force-at-stroke normalization	Supplier force table tied to 90% Uₙ and warmed state; claimed 24 N at required stroke with ±10% spread.	Conservative available force = 24 N × 0.9 = 21.6 N; margin vs 18 N target is 1.2x.	Pass at boundary; require pilot validation before production freeze.
Drive and suppression path	Chosen architecture: DC driver with peak/hold profile + explicit suppression topology.	Suppressor choice changes release timing and switching stress, so it is part of procurement approval.	Lock schematic in PO package; reject "driver TBD" releases.
Compliance split	12 V and 120 V variants in the same product family for EU + US deployment.	LVD scope split does not remove EMC obligations for placed-on-market equipment, and US installation still requires approved/listed use alignment.	Pass only if EMC evidence stays active in the 12 V checklist and listing-use evidence is attached for the 120 V path.
Classified-location gate	Site requires Class I / Division-labeled equipment for a hazardous process area.	Ordinary-location assumptions fail here: OSHA 1910.307 requires approved equipment for the classified location, and UL 429 scope is ordinary-location-focused.	Stop generic release and move to classified-location approval workflow with class/group/temperature-mark verification.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status OSHA 1910.303 general electrical requirements OSHA 1910.307 hazardous (classified) locations requirements UL 429 product detail page (scope + revision markers)Pacific Power engineering handbook 1C.2.1 (ANSI C84.1 service voltage ranges)ASCO 210 (8210) general service solenoid valve catalog Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Bürkert kick-and-drop dual-coil technology page Kendrion technical explanations for electromagnets and actuators Kendrion high-performance solenoids catalogue Magnet-Schultz GTA datasheet (force/stroke + duty basis)Magnet-Schultz G XX technical explanations (DC solenoids)

Stage1b Gap Audit

Content-gap audit and effective information increment

This section records the audited gaps and exactly what changed in this enhancement round.

Audited gap	Enhancement made	Decision impact
120V alias intent was under-expressed in hero copy, FAQ wording, and structured data.	Expanded canonical intent coverage to explicitly include “120v solenoid actuator” across headings, quick answers, FAQ, and schema metadata.	Alias traffic can land on one canonical URL with explicit 12V/120V/110V intent handling, reducing split-intent ambiguity.
Regulatory applicability boundaries for 12 V vs 110 V were not explicit.	Added EU LVD and OSHA class-circuit thresholds, then mapped them into key numbers and a dedicated compliance-boundary table.	Users now see why 12 V and 110 V often need different evidence packs even on the same canonical page.
IP and NEMA enclosure assumptions were mixed without explicit standard limits.	Added NEMA EN 10250 scope/exclusion notes and NEMA-vs-IEC-IP non-equivalence guidance with explicit source linkage.	Environmental qualification now includes counterexamples instead of one-line IP shorthand.
Current page lacked quantified energy/thermal tradeoff options for controlled drivers.	Added TI peak/hold reference design data (up to 70% hold-power reduction) and practical current-setpoint example from the design guide.	Drive-path comparison now includes a concrete mitigation path when coil heating margin is tight.
Temperature impact on duty decisions was under-specified.	Added source-backed reference-temperature conversion factors from Magnet-Schultz G XX and mapped them into key numbers, method, and checker boundary logic.	Duty approval now has an explicit thermal boundary instead of a static ED assumption.
Suppression tradeoff was present as a warning but lacked quantified stakes.	Added quantified deactivation-overvoltage facts and clarified release-delay tradeoff when free-wheeling diodes are used.	Drive-architecture decisions now include explicit switching-stress and response-time consequences.
Environmental fit was missing concrete ingress and product-family boundaries.	Added IP40/IP54/IP65 and family-specific enclosure notes from Kendrion public materials.	Procurement review can reject mismatched enclosure assumptions earlier.
Counterexamples for “same voltage means same suitability” were still incomplete.	Expanded boundary map with compliance-scope split, class-circuit thresholds, and standards-limit counterexamples.	Decision logic now highlights where similar keyword intent still diverges in legal and qualification pathways.
Some widely repeated procurement claims still lack public, comparable datasets.	Retained and expanded pending-evidence ledger with explicit “no reliable public dataset” labels.	Prevents unsupported conclusions and keeps recommendations auditable.
LVD scope split could still be misread as “12 V has no EU compliance burden”.	Added EMC Directive 2014/30/EU boundary and legal timeline to compliance rows, key numbers, and FAQ.	Low-voltage users now see why LVD out-of-scope is not an approval shortcut.
Catalog values were still reused across suppliers without test-baseline normalization.	Added source-backed baseline conditions: 90% rated-voltage force basis, warmed state, 70% magnetic-load assumption, and part-family tolerance statements from Kendrion and Magnet-Schultz.	Cross-vendor comparisons now require matched test basis before acceptance.
Frequency-risk boundary for AC paths was not explicit in decision logic.	Added Kendrion frequency notes (about 30% force reduction at higher frequency and heating risk at lower frequency) into key numbers, boundary map, and FAQ.	Review teams can now reject nominal-voltage matches that ignore 50/60 Hz behavior changes.
Inrush-vs-hold electrical load risk was not quantified with cross-vendor examples.	Added ASCO and Danfoss inrush/hold rows plus method/risk guidance so PSU and protection checks are done on pickup demand, not hold-only values.	Procurement teams now have explicit anti-under-sizing evidence before release.
US installation and listing-use obligations were missing from boundary logic.	Added OSHA 1910.303 approval/listing-use and ≥50 V guarding boundaries into key numbers, compliance table, and FAQ.	US deployments now include installation/audit constraints beyond nominal voltage matching.
Kick-and-drop architecture evidence relied mainly on one vendor family.	Added Bürkert dual-coil data (up to 80% energy reduction, ~500 ms switch point, and self-heating claim) as a counterexample with family-specific caveat.	Energy-saving guidance now distinguishes general principle from product-family-specific claims.
Cross-voltage family examples lacked public coil-code granularity.	Added Parker Chart 8 rows showing 12.0 V and 120/60, 110/50 entries with variant certification/enclosure options.	Users now see why exact coil code and certification package matter more than keyword voltage alone.
Hazardous-location decision gates were not explicit for 120V procurement paths.	Added OSHA 1910.307 classified-location requirements (approved equipment + class/group/temperature marking baseline) to key numbers, compliance boundaries, risk table, and FAQ.	Teams can block unsafe ordinary-location assumptions before RFQ release in classified-area projects.
Public standards-scope boundary for valve-style 120V actuators was not directly cited.	Added UL 429 scope note (ordinary locations, ≤600 V) and hazardous-location standard cross-reference (UL 913 / UL 121201) into boundary and evidence sections.	Certification-path decisions now include a clear “where this standard stops” boundary instead of generic listing assumptions.
120/60 vs 110/50 cross-vendor class evidence was concentrated in too few examples.	Added Danfoss HVACR coil-series evidence (UL-approved 110-240 V / 50-60 Hz classes) and ASCO standard-voltage class notes to reinforce voltage/frequency class interpretation.	Users can compare 120V intent with broader vendor class evidence while keeping part-code-level validation requirements explicit.
EU hazardous-area boundary was still under-specified for mixed-market deployments.	Added ATEX equipment/workplace split (2014/34/EU + 1999/92/EC) with timeline and guideline-update context from the European Commission page.	EU explosive-atmosphere projects now have an explicit gate instead of assuming LVD/EMC coverage is sufficient.
US acceptance wording used “approved/listed” but did not expose the NRTL definition path.	Added OSHA 1910.399 + NRTL program references so “acceptable equipment” decisions are tied to an explicit listing/certification route.	Cross-region projects can screen US acceptance risk earlier instead of discovering listing-path gaps at site audit.
Energy tradeoff guidance lacked a public tariff baseline for procurement-level OPEX screening.	Added EIA Table 4 2024 average price data and April 2026 STEO trend row to support duty-weighted architecture cost checks.	Selection now includes an auditable cost screen, not only force/duty/compliance constraints.
12V intent still defaulted to stable-lab supply assumptions in some buyer flows.	Added TI automotive transient boundaries (ISO 7637-2 / ISO 16750-2 context) showing 3-36 V operating envelope, 42 V transient validation, and pulse/load-dump counterexamples.	Mobile or vehicle-powered projects now get an explicit transient gate before driver and suppression choices are frozen.
Low-voltage compliance guidance was still too LVD-centered.	Added European Commission RoHS scope reminder and GPSR (EU) 2023/988 applicability timeline (from December 13, 2024) to key numbers, quick answers, and evidence tables.	12V teams now see that “below LVD” does not eliminate material and product-safety documentation duties.
Model-level duty and stroke counterexamples were not strong enough for 12V sizing conversations.	Added Johnson open-frame and tubular examples: 1.3-1.5 design safety factor guidance, duty-dependent force spread, and steep stroke-force decay under continuous duty.	Actuator sizing decisions now include quantitative anti-overclaim guardrails instead of relying on headline-force values.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)Kendrion technical explanations for electromagnets and actuators Kendrion AC linear solenoids product page Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion H-Line single-stroke linear solenoid overview Danfoss coil technical leaflet (inrush/holding + voltage variation)ASCO 210 (8210) general service solenoid valve catalog Parker Chart 8 solenoid coils product series data Bürkert kick-and-drop dual-coil technology page Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)Johnson Electric Ledex open-frame DC solenoid catalog Johnson Electric Ledex tubular solenoid 100 push datasheet UL 429 product detail page (scope + revision markers)NEMA EN 10250-2024 enclosure scope (up to 1000 V)NEMA enclosure type vs IEC 60529 IP comparison bulletin TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Method

How to run a defensible 12V / 120V / 110V actuator review

Use this sequence when converting a keyword request into a release-ready engineering decision.

1. Confirm voltage class against measured line window

Pacific Power engineering handbook 1C.2.1 cites ANSI C84.1-style windows (for example, Range A 114-126 V for 120 V service); Danfoss coil guidance also uses voltage-variation windows.

Action: Measure real operating voltage under load before selecting a 12 V DC or 110/120 V class coil code.

1b. For battery/mobile 12V systems, screen transient envelope before driver lock

TI TIDA-01179 and SSZT243 (ISO 7637-2 / ISO 16750-2 context) show that nominal 12V systems can include deep negative pulses and load-dump-like positive excursions.

Action: If supply can see automotive-style events, validate surge, reverse-polarity, and load-dump tolerance before freezing controller/protection topology.

2. Split compliance and control-circuit path by voltage class

European Commission LVD scope starts at 50 VAC / 75 VDC, EMC Directive 2014/30/EU still applies to apparatus and fixed installations, and OSHA 1910.308 defines Class 1 power-limited thresholds at up to 30 V and 1000 VA.

Action: Document LVD/EMC obligations plus control-circuit class before RFQ release; do not treat LVD out-of-scope as a blanket compliance exemption.

2b. Add low-voltage market-access checks beyond LVD (RoHS + GPSR timeline)

European Commission RoHS page keeps EEE-component products in scope unless excluded; European Commission GPSR page states Regulation (EU) 2023/988 applies from December 13, 2024.

Action: For 12V paths, keep RoHS/material documentation and product-safety route checks active instead of ending compliance review at the LVD boundary decision.

3. For US installations, verify approval/listing-use boundaries

OSHA 1910.303 requires approved equipment, states listing/labelling can evidence suitability, requires listed equipment to be installed/used per instructions, and requires guarding for exposed live parts at 50 V or above.

Action: Add listing files, installation instructions, and applicable guarding checks to the release pack instead of relying on voltage-match alone.

4. Gate hazardous-location scenarios before ordinary-location assumptions

OSHA 1910.307 requires equipment in hazardous (classified) locations to be approved for that location and marked by class/group/operating temperature; UL 429 scope is for ordinary locations and refers hazardous-location compartments to UL 913 / UL 121201 routes.

Action: If any classified-area requirement appears, stop generic release and move to a classified-location approval workflow before quote freeze.

5. Lock operating mode before procurement

Kendrion lists duty cycle independently (5-100%) and its technical explanations require moving to 100% duty selection if on-time exceeds 180 seconds.

Action: Treat duty, ambient, and on-time window as required approval fields, not optional notes.

6. Apply reference-temperature conversion for DC duty checks

Magnet-Schultz G XX guidance maps conversion factors such as 1.0 at 35°C, 0.8 at 50°C, and 0.5 at 80°C.

Action: If your thermal reference is above baseline, de-rate the practical duty target or request part-level thermal proof.

7. Normalize force data to stroke conditions

Magnet-Schultz and Kendrion force data are tied to 90% rated-voltage test baselines and warmed conditions, with published tolerance/baseline notes.

Action: Use force-at-stroke with margin and compare only after normalizing test baseline conditions.

8. Decide drive architecture and suppression before RFQ release

Kendrion technical explanations distinguish direct AC/DC behavior and rectifier effects, and document switch-off overvoltage plus diode release-delay tradeoffs.

Action: Freeze drive path early because it changes thermal, noise, and switching behavior.

9. Evaluate whether peak/hold current control is required

TI reference material reports up to 70% hold-power reduction by switching from pull-in peak current to lower hold current once movement is complete.

Action: If coil heating margin is weak, test a peak/hold strategy and verify pull-in repeatability, hold force, and release timing on the real mechanism.

10. Validate pickup-vs-hold electrical load before PSU freeze

ASCO and Danfoss public coil tables show substantial inrush-versus-holding differences, while Bürkert kick-and-drop architecture intentionally switches from pull-in to lower hold current after a short interval.

Action: Size power source, fusing, and switching path for pickup demand first, then verify hold-state thermal margins and pull-in repeatability.

11. Verify protection class and ingress against the real environment

Magnet-Schultz GTA indicates class-III low-voltage use; Kendrion public series data shows enclosure ratings vary by family/configuration; NEMA guidance also warns IP and NEMA types are not exact one-to-one mappings.

Action: Reject assumptions like “all 110v actuators are equally sealed” or “all 12 V families can be wired to mains-level systems.”

12. Validate AC frequency assumptions before release

Kendrion technical explanations state 50 Hz coil designs may lose about 30% force at higher frequency, while lower frequency increases heating (operating window noted at 40-60 Hz).

Action: If source frequency differs from rated coil frequency, require force/duty retest instead of approving by nominal voltage alone.

13. Add explicit ATEX gate when explosive-atmosphere deployment is possible

European Commission ATEX guidance separates equipment obligations (Directive 2014/34/EU, applicable from April 20, 2016) from workplace obligations (Directive 1999/92/EC).

Action: For EU explosive-atmosphere scenarios, split equipment and workplace evidence tracks before vendor shortlist freeze.

14. For US workplace release, map evidence to OSHA “acceptable” path

OSHA 1910.399 definitions link acceptable electrical equipment to listed/labeled/certified pathways tied to 1910.7 NRTL logic, and OSHA NRTL product references map back to 1910.303/1910.307 obligations.

Action: Attach the target listing/certification path and usage conditions to each candidate coil code before PO release.

15. Run a duty-weighted OPEX check before architecture lock

EIA 2024 U.S. average retail electricity price is 12.94¢/kWh (commercial 12.75¢; industrial 8.13¢), and EIA April 2026 STEO indicates upward near-term average-price pressure.

Action: Convert duty-weighted real-power deltas into annual cost impact for your unit count so architecture decisions include cost risk, not only thermal/compliance fit.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.308 special systems (Class 1/2/3 circuit limits)OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)UL 429 product detail page (scope + revision markers)Pacific Power engineering handbook 1C.2.1 (ANSI C84.1 service voltage ranges)Kendrion AC linear solenoids product page Kendrion technical explanations for electromagnets and actuators Magnet-Schultz GTA datasheet (force/stroke + duty basis)Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)Danfoss coil technical leaflet (inrush/holding + voltage variation)ASCO 210 (8210) general service solenoid valve catalog Parker Chart 8 solenoid coils product series data Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Bürkert kick-and-drop dual-coil technology page Kendrion heavy-duty linear solenoids technical data Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion H-Line single-stroke linear solenoid overview NEMA EN 10250-2024 enclosure scope (up to 1000 V)NEMA enclosure type vs IEC 60529 IP comparison bulletin TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)Johnson Electric Ledex open-frame DC solenoid catalog Johnson Electric Ledex tubular solenoid 100 push datasheet U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Applicability Conditions

Concept boundaries that change the decision path

These are hard boundaries for scope, compliance, and applicability. If one boundary fails, the recommendation path must change.

Concept boundary	Known evidence	Where it fails	Minimum action
EU product-law scope split	Directive 2014/35/EU (LVD) scope is 50-1000 VAC and 75-1500 VDC, applicable since April 20, 2016.	110/120 V actuator paths are inside LVD scope, while 12 V paths are outside LVD and generally handled through other product-safety frameworks.	Do not reuse one compliance checklist for both voltage classes; keep separate evidence paths in RFQ and technical file reviews.
EU EMC obligation (independent of LVD threshold)	EMC Directive 2014/30/EU requires apparatus and fixed installations to meet EMC requirements when placed on the market and/or taken into service.	A 12 V architecture can be outside LVD scope while still inside EMC obligations for emissions/immunity.	Run EMC evidence planning for both 12 V and 110 V paths; do not mark low-voltage variants as compliance-free.
EU explosive-atmosphere (ATEX) split	European Commission ATEX guidance separates equipment obligations under Directive 2014/34/EU from workplace obligations under Directive 1999/92/EC.	LVD/EMC coverage does not automatically satisfy explosive-atmosphere requirements when the installation environment is potentially explosive.	When explosive-atmosphere exposure exists, add ATEX equipment + workplace evidence tracks before final part selection.
US control-circuit threshold	OSHA 1910.308 Class 1 power-limited definition is up to 30 V and 1000 VA.	12 V control loops can fit power-limited assumptions, but 110 V loops require different wiring/protection assumptions.	Tag circuits by class early and review conductor/protection choices before freezing architecture.
US approval, listing, and guarding boundary	OSHA 1910.303 requires approved equipment, allows listing/labelling as suitability evidence, requires listed equipment use per listing instructions, and requires guarding where exposed live parts are 50 V or above.	Voltage-match alone does not clear installation acceptance when listing conditions, enclosure form, or guarding assumptions are missing.	Attach listing documents and installation-condition checks to each selected coil code before procurement release.
US “acceptable equipment” definition path	OSHA 1910.399 definitions tie acceptable electrical equipment to listed/labeled/certified pathways with reference to 1910.7 NRTL logic; OSHA NRTL references route electrical products back to 1910.303/1910.307 sections.	Cross-region certificates alone may not satisfy US workplace acceptance if the applicable listing/certification path and use conditions are undocumented.	Document the target US acceptance route (listing/certification + installation conditions) for each shortlisted part number.
US hazardous (classified) location boundary	OSHA 1910.307 requires electrical equipment in hazardous locations to be approved for that location and marked by class/group/operating-temperature code, based on 40°C ambient unless another ambient is marked.	Ordinary-location assumptions are invalid when the install location is classified; voltage matching alone does not satisfy hazardous-location acceptance.	Run class/division/group/temperature-code matching before selection, and block release if classified-location evidence is incomplete.
UL 429 standards-scope boundary	UL 429 product detail scope covers electrically operated valves rated 600 V or less for ordinary locations and references UL 913 / UL 121201 for hazardous-location valve compartments.	A UL 429-only assumption does not automatically clear hazardous-location deployment requirements.	When application includes classified locations, add the hazardous-location standard path to the compliance package and do not release on UL 429 scope alone.
Enclosure standard scope	NEMA EN 10250-2024 covers enclosures for electrical equipment up to 1000 V and lists defined type conditions.	Standard scope does not guarantee every environment condition in-system (for example internal condensation/corrosion outcomes).	Treat enclosure type as one layer only; add environment-specific validation for the real installation context.
NEMA type vs IEC IP language	NEMA bulletin states IEC IP and NEMA types cannot be converted exactly one-to-one, and IEC IP does not include several NEMA test dimensions.	An IP code alone does not prove equivalence to a specific NEMA type for all hazards.	When project specs mix IP and NEMA language, force a side-by-side requirement matrix instead of shortcut mapping.
EU low-voltage market-access obligations beyond LVD	European Commission RoHS guidance keeps products with EEE components in scope unless excluded, and the Commission GPSR page states Regulation (EU) 2023/988 applies from December 13, 2024.	A 12V architecture being outside LVD scope does not remove substance-restriction or product-safety-route obligations.	Keep RoHS evidence and the relevant product-safety route active in the release checklist for low-voltage variants.
Nominal 12V versus transient stress envelope	TI references in ISO 7637-2 / ISO 16750-2 context show wide transient ranges (for example deep negative pulses and load-dump-like positive excursions) around nominal 12V systems.	Driver and suppression choices that pass on a static bench supply can fail field events if transient headroom is not validated.	Gate mobile/battery-powered projects with explicit surge, reverse-polarity, and load-dump checks before architecture freeze.
Thermal mitigation via driver architecture	TI TIDA-00289 reports up to 70% hold-power reduction with peak/hold control; TIDU578 example shows 1 A peak and 224 mA hold settings.	Benefit depends on coil/mechanics and validated pull-in timing; it is not an automatic drop-in for every actuator.	Use peak/hold as an explicit design option, then confirm force-at-stroke and release behavior after tuning.
Pickup-versus-hold electrical load envelope	ASCO and Danfoss public coil data list larger pickup demand than hold demand for AC coils, while Bürkert describes staged pull-in/hold current switching.	Hold-state power alone can understate startup electrical stress, causing intermittent pull-in or nuisance protection trips.	Freeze PSU/protection sizing from pickup demand first, then verify steady-state thermal behavior under hold conditions.

Sources used in this block

Research reviewed May 9, 2026

Action Checkpoint

Have your measured inputs ready?

Send voltage window, duty profile, and force-at-stroke targets now to convert this screening into a supplier-ready recommendation.

Send engineering inputs Review risk triggers

Boundary Map

Known boundaries, counterexamples, and applicability conditions

This matrix captures where 12V, 120V, and 110V paths diverge in practice, so voltage keywords are not mistaken for approval evidence.

Boundary dimension	12 V DC path	110v / 120 V class path	Decision impact
Voltage-window interpretation	Low-voltage paths can still fail if measured rail drift is unknown. Class-III examples are explicitly low-voltage-only.	ANSI C84.1 framing requires range-based screening (Range A 114-126 V; Range B 110-127 V for 120 V class), as reflected in utility engineering handbooks.	Do not approve from nominal labels alone; use measured windows with tolerance context.
Transient-event tolerance (battery/mobile scenarios)	TI ISO 7637-2 / ISO 16750-2 context examples show nominal 12V paths can see deep negative pulses and load-dump-like positive surges.	Mains-class paths emphasize surge and isolation practices, but low-voltage mobile paths still need transient gating rather than static-rail assumptions.	If deployment includes vehicle/battery events, transient validation becomes a release gate, not a post-launch debug task.
Duty under thermal stress	Magnet-Schultz G XX provides reference-temperature conversion factors for DC duty evaluation.	No universal public conversion table across all AC families; require part-level duty + ambient proof.	Treat universal derating constants as pending evidence unless tied to a specific product family.
Catalog force baseline mismatch	Magnet-Schultz FMME (Stand 012025) ties force values to 90% rated voltage, 24 V ±10%, reference assumptions, and allows about ±10% force spread.	Kendrion technical explanations tie force to 90% rated voltage and warmed condition, and note listed force can rise around 20% at rated voltage.	Normalize baseline conditions before comparing force claims; reject cross-vendor force ranking without matched test basis.
Duty-dependent force and power spread	Johnson open-frame and tubular examples show large duty/stroke dependence (for example B41: 2.7 lbf at 100% ED vs 11.0 lbf at 25% ED; tubular 100 push falls sharply with stroke under continuous duty).	The same normalization principle applies in mains-class coils: duty mode and stroke basis must match before comparing vendor claims.	Block RFQ release when force is quoted without duty mode, stroke point, and safety-factor context.
Suppression and release behavior	Direct DC-side switching can create high deactivation overvoltage if suppression is not designed.	Rectification and suppression topology can change hum/noise and release timing for 110/120 V class architectures.	Quote and test plans must lock suppression topology before final acceptance.
Compliance and control-circuit class	Can fall in low-voltage/power-limited control assumptions depending on source limits (for example OSHA Class 1 threshold).	Usually outside low-voltage power-limited assumptions and inside higher-voltage compliance/wiring obligations.	Use separate compliance checklists for 12 V and 110 V architectures even when the mechanism is the same.
US listing-use and guarding checks	Still requires approved equipment and listing-use alignment when installed in US workplaces; low-voltage alone is not an exemption.	Also requires listing-use alignment, with additional guarding expectations for exposed live parts at or above 50 V.	Add listing documents and installation-condition verification to both paths before PO release.
Hazardous-location classification and marking path	Low voltage does not remove hazardous-location obligations; classified areas still require location-approved equipment and proper marking.	120/110 V paths in classified areas need explicit class/group/temperature-code matching and cannot inherit ordinary-location assumptions.	If any site area is classified, switch to hazardous-location compliance workflow before vendor shortlist freeze.
Regional acceptance route (EU ATEX vs US NRTL)	Below-LVD voltage classes can still require ATEX equipment/workplace evidence in EU explosive-atmosphere cases and acceptable-equipment proof in US workplaces.	Mains-class paths add the same regional acceptance obligations on top of voltage/duty checks; certificate sets are not universally interchangeable.	Freeze region-specific compliance route per site (EU/US) before purchase to prevent late audit failures.
Pickup-versus-hold electrical loading	Driver-controlled DC paths can reduce hold current after pull-in, but startup current still defines minimum source capability.	AC-family tables often show significantly higher pickup demand than hold demand, especially in direct-AC coil options.	Do PSU/protection sizing on pull-in demand and keep hold value for thermal checks, not for startup sizing.
High-duty operating-cost exposure	DC architecture choices can shift continuous real-power draw; a 1 W continuous delta equals about 8.76 kWh/year per actuator before tariff scaling.	AC and rectified paths can also produce material fleet OPEX spread when duty is high, especially if hold-current reduction is not used.	Run duty-weighted kWh and tariff sensitivity (EIA baseline + site tariff) before architecture lock.
Supply frequency assumption (AC path)	Pure DC paths avoid mains-frequency force drift, but rectified paths still inherit ripple and decay behavior from source and suppression choices.	Kendrion notes 50 Hz coil designs can lose about 30% force at higher frequency and heat up more at lower frequency.	Treat 50/60 Hz mismatch as a revalidation trigger, not a clerical detail.
Ingress and enclosure assumptions	Voltage class does not imply sealing class; some families publish open-frame or lower enclosure baselines.	Kendrion public data shows variant-dependent ratings (for example, IP40 baseline with optional IP54, connector-dependent IP65).	Environmental acceptance must reference exact series + connector, not voltage keyword.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.308 special systems (Class 1/2/3 circuit limits)OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)Pacific Power engineering handbook 1C.2.1 (ANSI C84.1 service voltage ranges)Kendrion technical explanations for electromagnets and actuators Kendrion heavy-duty linear solenoids technical data Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion H-Line single-stroke linear solenoid overview ASCO 210 (8210) general service solenoid valve catalog Parker Chart 8 solenoid coils product series data Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Bürkert kick-and-drop dual-coil technology page Magnet-Schultz GTA datasheet (force/stroke + duty basis)Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)Johnson Electric Ledex open-frame DC solenoid catalog Johnson Electric Ledex tubular solenoid 100 push datasheet UL 429 product detail page (scope + revision markers)NEMA EN 10250-2024 enclosure scope (up to 1000 V)NEMA enclosure type vs IEC 60529 IP comparison bulletin TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Comparison

Drive-path comparison and selection boundaries

Use this matrix to compare options by outcome, risk, and rejection conditions.

Option	Best fit	Strength	Limit	Reject when
Direct 110/120 VAC coil	Simpler panels with compatible AC coil options	No separate DC stage; straightforward wiring in legacy AC cabinets.	Inrush/holding split can be large (for example 40 VA inrush / 16 VA hold in public ASCO tables), and line variation plus 50/60 Hz mismatch can reduce margin if force and duty are tight. Real-power and tariff uncertainty also makes early OPEX estimates noisy without measured data.	Duty margin is thin or acoustic/ripple constraints are strict without test data.
UL-approved 110/120 V class coil families (vendor catalog route)	Teams narrowing supplier shortlist from published voltage/frequency classes before part-code lock	Public Danfoss and ASCO materials show 110/120 V class availability with explicit 50/60 Hz classes and documented approval pathways.	Catalog-level class availability does not replace part-code-level proof for hazardous-location, ingress, and duty specifics.	Application requires classified-location approval or missing part-specific certificate/configuration evidence.
AC source + bridge rectifier	Need steadier current behavior while keeping AC panel input	Reduces some AC behavior variability and can improve control consistency.	Still needs suppression and thermal proof; rectifier path cannot be assumed equivalent by default.	Architecture is undocumented or supplier has not approved the exact drive path.
AC source + half-wave rectifier	Cost-constrained intermittent use with validated behavior	Minimal hardware footprint.	Higher ripple/hum/response drift risk under heavier duty.	Medium/high duty or force-sensitive positioning is required.
Regulated DC actuator path	Tighter response control and better repeatability	Cleaner controllability and easier integration with managed drivers.	Adds supply complexity and requires explicit switching/suppression design.	Project cannot support driver complexity or validation budget.
Peak/hold current-controlled DC driver path	Thermal-margin-limited systems needing faster pull-in with lower hold heat	Public TI references report up to 70% hold-power reduction, while Bürkert reports up to 80% energy reduction for dual-coil kick/drop architecture with short pull-in staging. At 24/7 operation, every 1 W continuous reduction is about 8.76 kWh/year per actuator before tariff multiplication.	Requires calibrated pull-in/hold timing, current-limiting resistor sizing for supply range, fast-recovery recirculation diode selection, and actuator-specific pull-in repeatability proof.	No validation budget exists for control tuning or for resistor/diode sizing across voltage and temperature states.
Class-III low-voltage DC family (example boundary)	Projects designed around low-voltage control architecture	Clear low-voltage usage boundary and part-level force curves for screened configurations.	Not a direct substitute for 110/120 VAC systems without approved conversion architecture.	The project is mains-only and no validated low-voltage conversion path exists.

Sources used in this block

Research reviewed May 9, 2026

Kendrion technical explanations for electromagnets and actuators Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion heavy-duty linear solenoids technical data ASCO 210 (8210) general service solenoid valve catalog Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Bürkert kick-and-drop dual-coil technology page Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)UL 429 product detail page (scope + revision markers)TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Risk And Tradeoffs

Concrete risk triggers and minimal mitigation actions

Focus on operational failure points and executable mitigations, not generic warnings.

Risk	Trigger	Impact	Mitigation
Compliance-scope mismatch	12 V and 110 V variants are processed with the same legal/compliance evidence set.	Certification package gaps surface late, delaying release or causing redesign.	Split compliance workflow by voltage class at project kickoff (for example LVD in-scope vs out-of-scope paths) and keep EMC evidence in both paths.
LVD out-of-scope misread as no EU compliance obligation	12 V architecture is marked “no compliance action needed” only because it is outside LVD thresholds.	EMC evidence is skipped and non-compliance appears during market-access checks.	Keep EMC Directive checks active for equipment placed on the market or taken into service, regardless of LVD threshold outcome.
Voltage-class overconfidence	Spec says “12 volt electric solenoid actuator” or “110v solenoid actuator” but no measured loaded voltage window exists.	Force and thermal margins drift outside expected behavior.	Record real line window, compare to nameplate and tolerance before part freeze.
12V transient envelope ignored in mobile/battery systems	Design assumes clean 12V DC bench supply and skips ISO-style surge/load-dump context checks for the real power source.	Driver, suppression, or coil path can fail under field transients despite passing nominal-voltage bench tests.	Add explicit transient validation gates (surge, negative pulse, reverse-polarity, load-dump context) before architecture release.
Low-voltage compliance blind spot (RoHS/GPSR omitted)	Team ends compliance review after deciding the 12V variant is outside LVD scope.	Market-access or audit issues appear later because material and product-safety obligations were not documented.	Keep RoHS and relevant product-safety route checks active for low-voltage variants and attach evidence in the release pack.
Pickup-load under-sizing	Power and protection are sized from hold-state values only, while actual pickup inrush demand is higher.	Intermittent pull-in failure, nuisance trips, or startup instability appears despite acceptable steady-state hold readings.	Use pickup/inrush demand as the primary sizing gate, then confirm hold-state thermal margins in long-run duty checks.
US listing-use mismatch	Selected coil option is installed without verifying listing/labelling conditions and installation instructions.	Site acceptance or safety audit fails even when voltage and force calculations pass.	Include approval/listing evidence and instruction-conformance checks in the release package for each selected coil code.
US acceptable-equipment path not documented	Project assumes non-US certificates are enough for OSHA workplace acceptance without defining the applicable listed/labeled/certified pathway.	Late-stage acceptance delays occur when auditors request NRTL-route evidence and installation-condition alignment.	Map each selected part number to the intended OSHA acceptable-equipment path and keep that evidence in the release packet.
Hazardous-location misclassification	Classified-area deployment is treated as ordinary-location installation because voltage/duty screening passed.	Regulatory acceptance and site safety can fail when class/group/temperature-code evidence is missing or mismatched.	Apply OSHA 1910.307 gate early and block procurement until classified-location approval and marking evidence is complete.
Frequency mismatch hidden by nominal voltage labels	50/60 Hz compatibility is assumed from voltage class naming without part-family verification.	Force and heating behavior diverge from expected catalog values during field operation.	Require frequency-fit confirmation in PO release criteria and revalidate force/duty when rated and actual frequency differ.
Duty ambiguity	PO issued without ED/S1 statement for exact coil code.	Unexpected overheating and shorter life in field duty pattern.	Require published duty + ambient basis as a release gate.
Duty-mode force overclaim	Headline force is reused across duty modes without checking duty-specific tables or stroke context.	Mechanism fails pull-in/hold targets because real force is lower in the chosen duty class.	Require duty-specific force-at-stroke data and keep a design safety factor (for example 1.3 to 1.5) in the release criteria.
Thermal derating assumption mismatch	Catalog duty is copied into hotter reference conditions without conversion or part-specific verification.	Field duty exceeds thermal capability even when nominal ED appears sufficient.	Apply family-specific conversion factors where published or escalate to supplier thermal proof.
Force-at-stroke mismatch	Design uses headline force instead of force at actual stroke/gap.	Actuator underperforms in final mechanism.	Use stroke-resolved force data with explicit margin (>1.2x preferred).
Drive architecture unresolved	Direct AC, bridge, or half-wave path not fixed before quote approval.	Noise, response, and thermal outcomes become unpredictable.	Lock architecture and re-validate duty/force at that exact drive path.
Suppression network omitted or under-specified	Direct DC-side switching path is used without explicit suppression and release-time target.	Switching stress and release behavior drift, creating reliability and timing failures.	Specify suppression topology and verify both overvoltage and release-time behavior before release.
Protection class / ingress mismatch	Voltage keyword or IP shorthand is used as proxy for full enclosure suitability.	Incorrect family selection for environment or control architecture.	Check class and IP claims against exact series + connector + mounting configuration, and avoid one-to-one IP↔NEMA assumptions.
Control strategy over-assumption	Peak/hold driver values are copied from a reference design without actuator-specific pull-in validation.	Pull-in failures or unstable hold current appear under tolerance and temperature spread.	Treat peak/hold values as starting points only; validate pull-in timing and minimum hold current on the actual mechanism.
Operating-cost blind spot in high-duty fleets	Architecture is chosen from force/duty pass criteria only, without converting duty-weighted power differences into annual kWh and tariff impact.	Fleet OPEX drifts beyond budget even though technical qualification passed.	Run duty-weighted kWh scenarios using EIA baseline prices and site tariffs before architecture freeze.
Safety-critical misuse	Generic solenoid actuator selected for dropped-load or power-fail hold case.	Potential compliance and safety failure at system level.	Escalate to dedicated safety-reviewed architecture and compliance workflow.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.308 special systems (Class 1/2/3 circuit limits)OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)Kendrion technical explanations for electromagnets and actuators Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion heavy-duty linear solenoids technical data ASCO 210 (8210) general service solenoid valve catalog Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Bürkert kick-and-drop dual-coil technology page Magnet-Schultz FMME + FMTX datasheet (Stand 012025)NEMA enclosure type vs IEC 60529 IP comparison bulletin UL 429 product detail page (scope + revision markers)TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)Johnson Electric Ledex open-frame DC solenoid catalog U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

Evidence Ledger

Source-mapped findings and unknown-data boundaries

Core conclusions are traceable here. Claims lacking reliable public data are marked explicitly.

Source-backed findings

Source	Fact extracted	Decision use	Review date
European Commission LVD overview (Directive 2014/35/EU)	Scope is 50-1000 VAC and 75-1500 VDC, and the directive has applied since April 20, 2016.	Separates 110 V compliance paths from 12 V paths so certification assumptions are not copied blindly.	2026-05-09 review
European Commission EMC Directive page (Directive 2014/30/EU)	Directive 2014/30/EU was published on March 29, 2014 and replaced 2004/108/EC from April 20, 2016; apparatus and fixed installations must meet EMC requirements when placed on the market and/or taken into service.	Prevents the false conclusion that low-voltage (for example 12 V) variants are automatically free of EU compliance obligations.	2026-05-09 review
European Commission ATEX page (Directive 2014/34/EU + 1999/92/EC)	ATEX equipment directive 2014/34/EU applies from April 20, 2016, and the same page links separate workplace obligations under Directive 1999/92/EC; sixth-edition ATEX guidelines were issued in January 2026.	Adds an explicit explosive-atmosphere gate so EU hazardous-area projects do not rely on LVD/EMC checks alone.	2026-05-09 review
European Commission RoHS Directive page (2011/65/EU)	The page states RoHS entered into force on July 21, 2011 and that all products with electrical/electronic components are in scope unless explicitly excluded.	Prevents low-voltage projects from assuming “outside LVD” means material-compliance documentation can be skipped.	2026-05-09 review
European Commission GPSR standards page (Regulation (EU) 2023/988)	The page states the General Product Safety Regulation entered into force on June 12, 2023 and applies from December 13, 2024, replacing the old GPSD framework.	Adds a dated product-safety route boundary for 12V consumer-facing placements where LVD alone is not the whole story.	2026-05-09 review
OSHA 1910.308 special systems	Class 1 power-limited circuits are defined with limits up to 30 V and 1000 VA.	Adds a hard threshold for deciding when low-voltage control-circuit assumptions stop applying.	2026-05-09 review
OSHA 1910.303 general electrical requirements	Requires approved equipment, states listed/labeled equipment must be installed and used in accordance with listing/labelling instructions, and sets guarding requirement for exposed live parts at 50 V or more.	Adds US installation/audit boundary so voltage and force pass results are not mistaken for installation approval.	2026-05-09 review
OSHA 1910.399 definitions	Defines acceptable equipment using listed/labeled/certified pathways and references Nationally Recognized Testing Laboratory logic in 1910.7.	Clarifies how US workplace acceptance evidence should be structured for shortlisted coil codes.	2026-05-09 review
OSHA NRTL Program product references	OSHA NRTL product references for electrical equipment point to standards tied to 1910.303 and 1910.307 applicability checks.	Connects product certification path decisions directly to the same installation/hazard-location sections used in this checker.	2026-05-09 review
OSHA 1910.307 hazardous (classified) locations	Requires equipment in hazardous locations to be approved for that location and identified by class/group/operating-temperature code, with marking based on 40°C ambient unless another ambient is marked.	Introduces a hard stop for classified-area projects where ordinary-location assumptions would create approval and safety risk.	2026-05-09 review
UL 429 product detail page	Scope states electrically operated valves rated 600 V or less for ordinary locations and references UL 913 / UL 121201 routes for hazardous-location valve compartments; page metadata shows current edition and revision markers.	Defines where UL 429-based assumptions stop and when hazardous-location standards must be added to the release package.	2026-05-09 review
NEMA enclosure scope + NEMA/IP comparison bulletin	NEMA scope covers enclosures up to 1000 V, and NEMA documents state IEC IP and NEMA types cannot be converted exactly one-to-one.	Prevents false equivalence when procurement specs mix IP and NEMA language.	2026-05-09 review
TI TIDA-00289 and TIDU578	Reference design states up to 70% hold-power reduction; design guide example uses 1 A peak current and 224 mA hold current.	Introduces a concrete thermal-mitigation option and its validation caveat into drive-path comparison.	2026-05-09 review
TI DRV110 datasheet (Rev. G, March 2018)	Describes current-controlled peak/hold operation, 6- to 48-V DC and rectified 120/230-V AC usage, and recommends fast-recovery recirculation diode selection with explicit resistor-sizing tables for high-voltage supplies.	Adds implementation boundaries so peak/hold driver paths are treated as engineered architectures, not copy-paste defaults.	2026-05-09 review
TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)	The reference design highlights operation from 3 to 36 V DC and validates transient behavior up to 42 V with integrated surge/reverse-battery/load-dump protection context.	Creates an explicit transient-screening boundary for nominal-12V designs that may run on noisy battery rails.	2026-05-09 review
TI SSZT243 automotive transient-protection article	The article explains that pulse-1 conditions can go below -100 V and shows load-dump examples around +35 V, reinforcing that “12V” can include severe transients.	Prevents under-specified driver and suppression selections in mobile/battery-powered actuator deployments.	2026-05-09 review
ASCO 210 (8210) catalog	Publishes AC inrush/holding examples (for example 40 VA inrush and 16 VA hold), lists standard AC classes (120/240/480 VAC at 60 Hz and 110/220 VAC at 50 Hz), and provides distinct ambient ranges for AC vs DC coil families.	Supports pickup-load sizing and adds a source-backed 120/60 vs 110/50 class boundary before part-code lock.	2026-05-09 review
Danfoss HVACR solenoid coil series page	States the series is UL approved according to UL 429 and available in 110-240 V classes at 50 Hz, 60 Hz, or 50/60 Hz.	Adds cross-vendor evidence that 120V intent should be handled as voltage/frequency class screening rather than single-label approval.	2026-05-09 review
Parker Chart 8 solenoid coil data	Public rows include 12.0 V and 120/60, 110/50 entries at 22 W with variant-specific ingress/certification options.	Adds coil-code-level counterexample showing that shared chart family does not remove certification and configuration differences.	2026-05-09 review
Bürkert kick-and-drop dual-coil page	Describes staged pull-in to hold-current switching (about 500 ms) with published claims of up to 80% energy reduction and reduced self-heating.	Expands energy-saving discussion beyond one supplier family while keeping family-specific validation warnings explicit.	2026-05-09 review
U.S. EIA Table 4 retail electricity pricing	2024 U.S. average retail electricity price is 12.94¢/kWh (commercial 12.75¢/kWh, industrial 8.13¢/kWh).	Adds an auditable tariff baseline for duty-weighted architecture OPEX screening.	2026-05-09 review
U.S. EIA STEO Table 7c (April 2026)	All-sector U.S. average electricity price outlook is 13.63¢/kWh for 2025 and 14.21¢/kWh for 2026.	Adds near-term trend context so cost tradeoff checks avoid stale tariff assumptions.	2026-05-09 review
Pacific Power engineering handbook 1C.2.1	Handbook table for 120/240 service lists Range A 114/228 to 126/252 and Range B 110/220 to 127/254, aligned with ANSI C84.1 range framing.	Interprets 110v search intent as voltage class screening, not fixed-number assumption.	2026-05-09 review
Kendrion AC linear product page	Supply voltages list includes 110 VAC; duty cycle listed as 5-100%.	Supports canonical alias merge and duty-as-separate-axis guidance.	2026-05-09 review
Magnet-Schultz G XX technical explanations	Reference-temperature conversion factors are published for duty checks (for example: 35°C=1.0, 50°C=0.8, 80°C=0.5).	Adds a concrete boundary for temperature-dependent duty decisions instead of static ED assumptions.	2026-05-09 review
Kendrion technical explanations	Documents architecture-dependent behavior for AC/DC and rectifier paths, plus switch-off overvoltage and suppression tradeoffs.	Backs checker boundary logic for unknown/half-wave architecture cases and suppression planning.	2026-05-09 review
Kendrion high-performance and heavy-duty specs	Public specifications show series-dependent enclosure boundaries (for example IP40 baseline with optional IP54, and connector-dependent values up to IP65).	Prevents false assumption that voltage class implies equivalent ingress performance.	2026-05-09 review
Kendrion H-Line single-stroke linear-solenoid overview	The overview lists open-frame baselines such as IP00, thermal classes E (120) / B (130), and duty classes up to 100% ED depending on variant.	Makes enclosure and insulation-class checks explicit so integration risk is not hidden behind voltage keywords.	2026-05-09 review
Kendrion high-performance / high-power technical notes	Force and duty values are tied to 90% rated-voltage and warmed-up baselines with 70% magnetic-load assumptions; technical notes also state listed values can rise at rated voltage and set explicit duty/frequency boundaries.	Stops cross-family force and duty comparisons unless test baselines are normalized first.	2026-05-09 review
Magnet-Schultz GTA datasheet	Force data tied to 90% Uₙ and includes force spread tolerance; protection class statement also constrains use context.	Enforces force-at-stroke margin requirement rather than headline-force selection.	2026-05-09 review
Magnet-Schultz FMME + FMTX datasheet (Stand 012025)	Publishes 24 VDC ±10% baseline, S1 (100% ED), reference temperature assumptions, 90% rated-voltage force basis, and approximate ±10% force spread notes.	Provides a dated, product-family-specific baseline for force/duty normalization and procurement screening.	2026-05-09 review
Johnson Electric Ledex open-frame DC solenoid catalog	Catalog guidance recommends a 1.3-1.5 design safety factor, defines duty-cycle equation (ON/(ON+OFF)), and shows large duty-dependent force spread (for example B41: 2.7 lbf at 100% ED vs 11.0 lbf at 25% ED).	Adds quantitative guardrails against force overclaim when duty mode changes.	2026-05-09 review
Johnson Electric Ledex tubular 100 push datasheet	Force tables show steep stroke-dependent drop under 100% duty (for example 22.86 N at 0 mm versus 1.22 N at 15.24 mm) and much higher intermittent-duty force rows.	Reinforces that duty and stroke basis must be attached to every force claim in RFQ screening.	2026-05-09 review
Danfoss coil leaflet	Includes inrush/holding VA split plus coil-family voltage-variation and ambient boundaries (for example +10/-15% and -40 to +80°C for specific AC coils).	Supports tolerance-aware and ambient-aware filtering instead of voltage-only qualification.	2026-05-09 review

Unknown / pending evidence

These points were not forced into conclusions because reliable public data was insufficient.

Claim	Status	Note
Open, model-level public database that maps every actuator part number to regional certifications (UL/CE/UKCA/ATEX) with revision history	Pending confirmation / no reliable public dataset	Public manufacturer pages and certificates are fragmented; no comprehensive, vendor-neutral dataset was confirmed.
Open cross-vendor mapping of solenoid actuator part numbers to hazardous-location class/group/temperature-code approvals	Pending confirmation / no reliable public dataset	Public standards pages define the boundary, but comparable multi-vendor machine-readable approval mapping was not found.
Universal field-failure rate difference between 110 V and 120 V actuator deployments	Pending confirmation / no reliable public dataset	No consistent cross-vendor public dataset found with comparable application controls.
One-size-fits-all thermal derating factor across all 110v actuator families	Pending confirmation / no reliable public dataset	Public sources provide family-specific duty/ambient bases and conversion tables, not a universal constant.
Universal release-time delta for every suppression topology and coil family	Pending confirmation / no reliable public dataset	Available public material states directionally that free-wheeling diodes increase release delay, but no cross-vendor universal delta was found.
Cross-vendor dataset quantifying 50 Hz vs 60 Hz force and heating shifts for linear solenoid families	Pending confirmation / no reliable public dataset	Public sources provide family-level guidance and warnings, but no normalized multi-vendor dataset was found for universal conversion.
Universal pickup-to-hold conversion ratio that can be reused across all AC and DC solenoid families	Pending confirmation / no reliable public dataset	Public catalogs provide family-level inrush/hold values, but no normalized cross-vendor ratio was confirmed.
Open cross-vendor dataset for real-power and power-factor values across AC solenoid families under pickup and hold conditions	Pending confirmation / no reliable public dataset	Public catalogs often publish VA and family-specific examples, but a normalized multi-vendor real-power dataset suitable for fleet OPEX benchmarking was not found.
Generic solenoid actuator can satisfy safety-critical hold requirements without architecture-specific compliance	Pending confirmation / no reliable public dataset	Available public standards references imply scenario-specific compliance paths; no generic blanket approval was found.

Sources used in this block

Research reviewed May 9, 2026

European Commission Low Voltage Directive (2014/35/EU) scope page European Commission EMC Directive (2014/30/EU) scope and legal status European Commission ATEX page (Directive 2014/34/EU + workplace 1999/92/EC links)European Commission RoHS Directive page (2011/65/EU)European Commission GPSR standards page (Regulation (EU) 2023/988)OSHA 1910.303 general electrical requirements OSHA 1910.308 special systems (Class 1/2/3 circuit limits)OSHA 1910.307 hazardous (classified) locations requirements OSHA 1910.399 definitions (acceptable + NRTL reference)OSHA NRTL product list references (1910.303 / 1910.307)UL 429 product detail page (scope + revision markers)NEMA EN 10250-2024 enclosure scope (up to 1000 V)NEMA enclosure type vs IEC 60529 IP comparison bulletin TI DRV110 datasheet (Rev. G, March 2018)TI TIDA-00289 solenoid peak/hold reference design overview TI TIDU578 design guide (DRV110 peak/hold current data)TI SSZT243 automotive transient-protection article (October 2020)TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)ASCO 210 (8210) general service solenoid valve catalog Parker Chart 8 solenoid coils product series data Bürkert kick-and-drop dual-coil technology page Kendrion AC linear solenoids product page Kendrion technical explanations for electromagnets and actuators Kendrion heavy-duty linear solenoids technical data Kendrion high-performance solenoids catalogue Kendrion high-power line linear solenoids catalogue Kendrion H-Line single-stroke linear solenoid overview Magnet-Schultz GTA datasheet (force/stroke + duty basis)Magnet-Schultz G XX technical explanations (DC solenoids)Magnet-Schultz FMME + FMTX datasheet (Stand 012025)Johnson Electric Ledex open-frame DC solenoid catalog Johnson Electric Ledex tubular solenoid 100 push datasheet Danfoss coil technical leaflet (inrush/holding + voltage variation)Danfoss HVACR solenoid coil series page (UL + 110-240 V classes)Pacific Power engineering handbook 1C.2.1 (ANSI C84.1 service voltage ranges)U.S. EIA Table 4 retail electricity average price (2024 data)U.S. EIA STEO Table 7c electricity price outlook (April 2026)

FAQ

12V / 120V / 110V solenoid actuator decision FAQ

Grouped by intent stage so users can get quick answers or deeper procurement guidance.

Intent and scope

Electrical and duty boundaries

Risk and procurement

Next Action

Turn this screening result into a build-ready actuator decision

Share your measured voltage window, duty profile, and force-at-stroke targets. We will map the shortest validated path instead of forcing a generic voltage-keyword recommendation.

Request review Contact engineering

12V linear solenoid actuator fit checker + 12V DC / 120V / 110V decision report

Signal

Number

Why this matters

ANSI C84.1 Range A (120 V class service)

114 V to 126 V

Pacific Power engineering handbook 1C.2.1 (published November 26, 2024) lists 114/228 to 126/252 for 120/240 service, aligned with ANSI C84.1 range framing.

ANSI C84.1 Range B (120 V class service)

110 V to 127 V

The same handbook lists 110/220 to 127/254 as broader boundary values for 120/240 service.

EU LVD applicability window

50-1000 VAC / 75-1500 VDC

European Commission LVD scope for Directive 2014/35/EU (applicable since April 20, 2016).

EU EMC directive legal timeline

Published 29 Mar 2014; transition date 20 Apr 2016

European Commission EMC page states Directive 2014/30/EU repealed 2004/108/EC from April 20, 2016 and keeps equipment EMC obligations active.

EU ATEX equipment directive timeline

Directive 2014/34/EU applicable from 20 Apr 2016

European Commission ATEX page lists the equipment directive timeline and points to current guidance (sixth-edition guidelines issued January 2026).

EU ATEX workplace complement

Directive 1999/92/EC

The same ATEX page links workplace obligations separately from equipment-law obligations, which prevents “one directive covers all” assumptions.

EU RoHS scope reminder

In force since 21 Jul 2011; EEE components in scope unless excluded

European Commission RoHS page states all products with electrical/electronic components are covered unless explicitly excluded.

EU GPSR transition marker

Regulation (EU) 2023/988 applies from 13 Dec 2024

European Commission GPSR standards page confirms the new regulation replaced the old General Product Safety Directive timeline.

US Class 1 power-limited threshold (OSHA 1910.308)

≤30 V and ≤1000 VA

OSHA 1910.308(c)(1)(i) definition; helps separate low-voltage control assumptions from 110 V mains-class paths.

US installation boundary for exposed live parts (OSHA 1910.303)

Guarding required at 50 V or above

OSHA 1910.303 requires guarding against accidental contact for live parts at 50 V or more, adding an installation boundary beyond keyword voltage labels.

US hazardous-location marking baseline (OSHA 1910.307)

Class / group / operating temperature code at 40°C ambient

OSHA 1910.307 requires equipment in hazardous (classified) locations to be approved for that location and uses class/group/temperature identification with 40°C ambient baseline unless otherwise marked.

US “acceptable equipment” pathway

OSHA 1910.399 references 1910.7 NRTL route

OSHA definitions tie “acceptable” electrical equipment to listed/labeled/certified logic, so listing path evidence must match workplace acceptance expectations.

UL 429 scope boundary

Electrically operated valves, rated 600 V or less, ordinary locations

UL 429 product detail scope states ordinary-location use and points hazardous-location compartments to UL 913 / UL 121201 routes.

Published AC supply classes

12 / 24 / 110 / 230 / 400 VAC

Kendrion AC linear solenoids listing.

AC linear duty window

5% to 100% duty

Published separately from voltage on Kendrion page.

DC thermal conversion factors

35°C=1.0; 50°C=0.8; 80°C=0.5

Magnet-Schultz G XX reference-temperature conversion table for duty evaluations.

Example inrush vs holding

55 VA inrush / 26 VA hold

Danfoss 14 W AC coil table example (M2, 110 V/50 Hz line item).

ASCO coil load spread example

40 VA inrush / 16 VA hold (F-6.1)

ASCO 210 (8210) catalog electrical table shows pickup-versus-hold spread for AC coils.

ASCO standard AC coil voltage classes

120 / 240 / 480 VAC at 60 Hz; 110 / 220 VAC at 50 Hz

ASCO 210 catalog general notes list these standard AC classes for coil selection.

ASCO ambient split by coil type

AC: 0 to 52°C; DC: 0 to 40°C

ASCO 210 catalog temperature range table differs for RedHat AC and RedHat DC coils.

Danfoss ambient boundary examples

-40 to +80°C (10/12 W AC NC); -40 to +50°C (20 W DC)

Danfoss EVR V2.0 technical leaflet ambient ranges differ by coil family and power.

Danfoss permissible voltage variation examples

+10/-15% (10 W AC), +10/-10% (20 W DC)

Same leaflet shows voltage-tolerance windows differ by coil family.

Danfoss HVACR coil class range + approval note

UL-approved; available 110-240 V at 50/60/50-60 Hz

Danfoss HVACR solenoid coil series page lists UL approval and broad voltage/frequency class availability.

Kendrion force baseline normalization

90% Uₙ basis; ≈+20% at rated voltage

Kendrion High Performance technical explanations state force is safely reached at 90% rated voltage and maximum warming, and listed values rise by about 20% at rated voltage.

Kendrion duty-cycle long-on threshold

If on-time exceeds 180 s, move to 100% ED

Kendrion duty-cycle table and notes require selecting the next higher relative duty class, and above 180 s on-time the 100% duty route is required.

Kendrion AC frequency mismatch warning

Higher frequency can cut force by ~30%

Kendrion technical explanations state 50 Hz coil designs may lose approximately 30% force at higher frequency; lower frequency increases heating.

Magnet-Schultz FMME baseline (Stand 012025)

24 VDC ±10%, S1 100%, 40°C ref, ±10% force spread

FMME+FMTX datasheet ties force values to 90% rated voltage and normal operating temperature with explicit reference assumptions.

Switch-off stress warning (direct DC-side)

≈2 kV at 110 V (≈4 kV at 230 V)

Kendrion technical explanations on deactivation overvoltage risk without suitable suppression.

Peak/hold driver efficiency lever

Up to 70% lower hold power

TI TIDA-00289 reports power reduction with peak-current pull-in then hold-current control.

Example DRV110 tuning in TI design guide

1 A peak, 224 mA hold (~68% cut)

TI TIDU578 example register settings show practical magnitude for hold-current reduction.

DRV110 high-voltage input resistor guidance

100 kΩ for 110-120 VAC; 200 kΩ for 220-240 VAC

TI DRV110 datasheet recommends series current-limiting resistor values for mains-derived input paths and requires recirculation-diode planning.

Automotive 12V design envelope (reference front-end)

3-36 V DC operation; transient tests up to 42 V

TI TIDA-01179 reference design in ISO 7637-2 / ISO 16750-2 context highlights why “12V” can require wide transient headroom.

Automotive pulse boundary examples

Pulse 1 can be ≤ -100 V; load dump examples near +35 V

TI SSZT243 article summarizes transient conditions that exceed nominal 12V rails and can break unprotected actuator-driver assumptions.

Bürkert kick-and-drop transition example

Switch to hold after ~500 ms

Bürkert energy-saving dual-coil description uses short pull-in pulse before hold-current operation.

Bürkert published energy/thermal claim

Up to 80% lower power; up to 45 K less self-heating

Vendor-published performance for kick-and-drop architecture; treat as family-specific until mechanism-level validation is complete.

Energy-cost benchmark for OPEX screening

EIA 2024 U.S. average 12.94¢/kWh

EIA Table 4 reports commercial 12.75¢/kWh and industrial 8.13¢/kWh; use this as a baseline when comparing duty-weighted architecture options.

Near-term electricity-price trend check

EIA STEO Apr 2026: 13.63¢/kWh (2025) to 14.21¢/kWh (2026)

Short-term outlook helps keep architecture-level cost comparisons from using stale tariff assumptions.

Parker Chart 8 cross-voltage row examples

12.0 V and 120/60, 110/50 entries at 22 W

Parker Chart 8 public product data shows same chart family spanning low-voltage and mains-class options with variant-specific ingress/certification details.

Published ingress / enclosure boundaries

IP40 standard, IP54 option, connector up to IP65

Kendrion high-performance and heavy-duty public specifications vary by series and connector choice.

Open-frame integration baseline (H-Line examples)

IP00; thermal class E(120)/B(130); ED up to 100%

Kendrion H-Line overview shows that ingress and insulation class need explicit system-level matching; voltage label alone does not capture enclosure/thermal limits.

Johnson open-frame design margin guidance

Recommended force safety factor: 1.3 to 1.5

Johnson Electric Ledex catalog recommends explicit force reserve and lists force at 20°C with a defined duty-cycle equation.

Duty-dependent force spread example (Johnson B41)

2.7 lbf at 100% ED vs 11.0 lbf at 25% ED

Johnson open-frame catalog table demonstrates that duty class can dominate delivered force at nominal stroke.

Stroke-loss illustration (Ledex tubular 100 push)

22.86 N at 0 mm vs 1.22 N at 15.24 mm (100% ED)

Johnson tubular datasheet highlights steep force decay with stroke even in the same coil family.

NEMA enclosure standard voltage scope

Enclosures for electrical equipment up to 1000 V

NEMA EN 10250-2024 scope statement.

Force tolerance framing

Measured at 90% Uₙ; ±10%

Magnet-Schultz GTA datasheet force-basis notes.

Audience segment

Fit status

Why

Minimum next path

Automation buyer with measured 12 V rail under load

Suitable

The checker can screen voltage alignment, duty, and force-at-stroke with explicit pass/fail boundaries.

Keep loaded-voltage records, ED/S1 statement, and stroke-specific force table in RFQ package.

Procurement comparing 12 V and 120/110 V variants in one mechanism

Suitable with boundary review

This page highlights LVD/EMC scope split, architecture tradeoffs, hazardous-location boundaries, and source-backed tolerance limits.

Split compliance evidence packs by voltage class, then rejoin at mechanism-level acceptance criteria.

Engineer validating duty at elevated ambient

Suitable

Result logic includes duty headroom, DC reference-temperature conversion, and boundary-state escalation.

Record ambient basis and derating method; do not ship with nominal duty only.

Safety-critical hold-through-power-loss design

Not suitable for direct approval

Tool intentionally blocks blanket approval for dropped-load or life-safety scenarios.

Move to architecture-level safety review with failure-mode and compliance evidence before PO release.

Team without part-level duty statement

Not suitable until data is added

Missing ED/S1 claims trigger a controlled needs-data result instead of a false pass.

Collect part-number-specific duty mode and ambient basis, then rerun the screen.

Project relying on generic “IP equals NEMA” wording

Not suitable until normalized

Public guidance states IP and NEMA are not one-to-one mappings, so direct substitution is risky.

Build a side-by-side ingress matrix for the exact actuator + connector configuration.

Project installed in hazardous (classified) location

Not suitable for direct approval

OSHA 1910.307 and UL 429 scope notes show ordinary-location assumptions are insufficient for classified-area deployment.

Escalate to classified-location approval path with class/group/temperature-marking verification before RFQ release.

Checkpoint

Sample input

Decision boundary

Release decision

Request snapshot

Alias query: "120v solenoid actuator". Mechanism asks for 18 N at 6 mm stroke, 3 s ON / 12 s OFF, 45°C ambient.

Treat as canonical solenoid-actuator flow, then screen voltage window + duty + force-at-stroke + drive path.

Continue review on canonical page (no alias route split).

Voltage and duty screen

Measured rail 12.3-12.7 V under load; target duty 20%. Thermal review uses 50°C reference factor (0.8) as conservative guardrail.

Static nameplate value is insufficient. Duty acceptance must include measured window plus thermal derating basis.

Pass with condition: duty statement and ambient basis must stay in RFQ.

Force-at-stroke normalization

Supplier force table tied to 90% Uₙ and warmed state; claimed 24 N at required stroke with ±10% spread.

Conservative available force = 24 N × 0.9 = 21.6 N; margin vs 18 N target is 1.2x.

Pass at boundary; require pilot validation before production freeze.

Drive and suppression path

Chosen architecture: DC driver with peak/hold profile + explicit suppression topology.

Suppressor choice changes release timing and switching stress, so it is part of procurement approval.

Lock schematic in PO package; reject "driver TBD" releases.

Compliance split

12 V and 120 V variants in the same product family for EU + US deployment.

LVD scope split does not remove EMC obligations for placed-on-market equipment, and US installation still requires approved/listed use alignment.

Pass only if EMC evidence stays active in the 12 V checklist and listing-use evidence is attached for the 120 V path.

Classified-location gate

Site requires Class I / Division-labeled equipment for a hazardous process area.

Ordinary-location assumptions fail here: OSHA 1910.307 requires approved equipment for the classified location, and UL 429 scope is ordinary-location-focused.

Stop generic release and move to classified-location approval workflow with class/group/temperature-mark verification.

Audited gap

Enhancement made

Decision impact

120V alias intent was under-expressed in hero copy, FAQ wording, and structured data.

Expanded canonical intent coverage to explicitly include “120v solenoid actuator” across headings, quick answers, FAQ, and schema metadata.

Alias traffic can land on one canonical URL with explicit 12V/120V/110V intent handling, reducing split-intent ambiguity.

Regulatory applicability boundaries for 12 V vs 110 V were not explicit.

Added EU LVD and OSHA class-circuit thresholds, then mapped them into key numbers and a dedicated compliance-boundary table.

Users now see why 12 V and 110 V often need different evidence packs even on the same canonical page.

IP and NEMA enclosure assumptions were mixed without explicit standard limits.

Added NEMA EN 10250 scope/exclusion notes and NEMA-vs-IEC-IP non-equivalence guidance with explicit source linkage.

Environmental qualification now includes counterexamples instead of one-line IP shorthand.

Current page lacked quantified energy/thermal tradeoff options for controlled drivers.

Added TI peak/hold reference design data (up to 70% hold-power reduction) and practical current-setpoint example from the design guide.

Drive-path comparison now includes a concrete mitigation path when coil heating margin is tight.

Temperature impact on duty decisions was under-specified.

Added source-backed reference-temperature conversion factors from Magnet-Schultz G XX and mapped them into key numbers, method, and checker boundary logic.

Duty approval now has an explicit thermal boundary instead of a static ED assumption.

Suppression tradeoff was present as a warning but lacked quantified stakes.

Added quantified deactivation-overvoltage facts and clarified release-delay tradeoff when free-wheeling diodes are used.

Drive-architecture decisions now include explicit switching-stress and response-time consequences.

Environmental fit was missing concrete ingress and product-family boundaries.

Added IP40/IP54/IP65 and family-specific enclosure notes from Kendrion public materials.

Procurement review can reject mismatched enclosure assumptions earlier.

Counterexamples for “same voltage means same suitability” were still incomplete.

Expanded boundary map with compliance-scope split, class-circuit thresholds, and standards-limit counterexamples.

Decision logic now highlights where similar keyword intent still diverges in legal and qualification pathways.

Some widely repeated procurement claims still lack public, comparable datasets.

Retained and expanded pending-evidence ledger with explicit “no reliable public dataset” labels.

Prevents unsupported conclusions and keeps recommendations auditable.

LVD scope split could still be misread as “12 V has no EU compliance burden”.

Added EMC Directive 2014/30/EU boundary and legal timeline to compliance rows, key numbers, and FAQ.

Low-voltage users now see why LVD out-of-scope is not an approval shortcut.

Catalog values were still reused across suppliers without test-baseline normalization.

Added source-backed baseline conditions: 90% rated-voltage force basis, warmed state, 70% magnetic-load assumption, and part-family tolerance statements from Kendrion and Magnet-Schultz.

Cross-vendor comparisons now require matched test basis before acceptance.

Frequency-risk boundary for AC paths was not explicit in decision logic.

Added Kendrion frequency notes (about 30% force reduction at higher frequency and heating risk at lower frequency) into key numbers, boundary map, and FAQ.

Review teams can now reject nominal-voltage matches that ignore 50/60 Hz behavior changes.

Inrush-vs-hold electrical load risk was not quantified with cross-vendor examples.

Added ASCO and Danfoss inrush/hold rows plus method/risk guidance so PSU and protection checks are done on pickup demand, not hold-only values.

Procurement teams now have explicit anti-under-sizing evidence before release.

US installation and listing-use obligations were missing from boundary logic.

Added OSHA 1910.303 approval/listing-use and ≥50 V guarding boundaries into key numbers, compliance table, and FAQ.

US deployments now include installation/audit constraints beyond nominal voltage matching.

Kick-and-drop architecture evidence relied mainly on one vendor family.

Added Bürkert dual-coil data (up to 80% energy reduction, ~500 ms switch point, and self-heating claim) as a counterexample with family-specific caveat.

Energy-saving guidance now distinguishes general principle from product-family-specific claims.

Cross-voltage family examples lacked public coil-code granularity.

Added Parker Chart 8 rows showing 12.0 V and 120/60, 110/50 entries with variant certification/enclosure options.

Users now see why exact coil code and certification package matter more than keyword voltage alone.

Hazardous-location decision gates were not explicit for 120V procurement paths.

Added OSHA 1910.307 classified-location requirements (approved equipment + class/group/temperature marking baseline) to key numbers, compliance boundaries, risk table, and FAQ.

Teams can block unsafe ordinary-location assumptions before RFQ release in classified-area projects.

Public standards-scope boundary for valve-style 120V actuators was not directly cited.

Added UL 429 scope note (ordinary locations, ≤600 V) and hazardous-location standard cross-reference (UL 913 / UL 121201) into boundary and evidence sections.

Certification-path decisions now include a clear “where this standard stops” boundary instead of generic listing assumptions.

120/60 vs 110/50 cross-vendor class evidence was concentrated in too few examples.

Added Danfoss HVACR coil-series evidence (UL-approved 110-240 V / 50-60 Hz classes) and ASCO standard-voltage class notes to reinforce voltage/frequency class interpretation.

Users can compare 120V intent with broader vendor class evidence while keeping part-code-level validation requirements explicit.

EU hazardous-area boundary was still under-specified for mixed-market deployments.

Added ATEX equipment/workplace split (2014/34/EU + 1999/92/EC) with timeline and guideline-update context from the European Commission page.

EU explosive-atmosphere projects now have an explicit gate instead of assuming LVD/EMC coverage is sufficient.

US acceptance wording used “approved/listed” but did not expose the NRTL definition path.

Added OSHA 1910.399 + NRTL program references so “acceptable equipment” decisions are tied to an explicit listing/certification route.

Cross-region projects can screen US acceptance risk earlier instead of discovering listing-path gaps at site audit.

Energy tradeoff guidance lacked a public tariff baseline for procurement-level OPEX screening.

Added EIA Table 4 2024 average price data and April 2026 STEO trend row to support duty-weighted architecture cost checks.

Selection now includes an auditable cost screen, not only force/duty/compliance constraints.

12V intent still defaulted to stable-lab supply assumptions in some buyer flows.

Added TI automotive transient boundaries (ISO 7637-2 / ISO 16750-2 context) showing 3-36 V operating envelope, 42 V transient validation, and pulse/load-dump counterexamples.

Mobile or vehicle-powered projects now get an explicit transient gate before driver and suppression choices are frozen.

Low-voltage compliance guidance was still too LVD-centered.

Added European Commission RoHS scope reminder and GPSR (EU) 2023/988 applicability timeline (from December 13, 2024) to key numbers, quick answers, and evidence tables.

12V teams now see that “below LVD” does not eliminate material and product-safety documentation duties.

Model-level duty and stroke counterexamples were not strong enough for 12V sizing conversations.

Added Johnson open-frame and tubular examples: 1.3-1.5 design safety factor guidance, duty-dependent force spread, and steep stroke-force decay under continuous duty.

Actuator sizing decisions now include quantitative anti-overclaim guardrails instead of relying on headline-force values.

Concept boundary

Known evidence

Where it fails

Minimum action

EU product-law scope split

Directive 2014/35/EU (LVD) scope is 50-1000 VAC and 75-1500 VDC, applicable since April 20, 2016.

110/120 V actuator paths are inside LVD scope, while 12 V paths are outside LVD and generally handled through other product-safety frameworks.

Do not reuse one compliance checklist for both voltage classes; keep separate evidence paths in RFQ and technical file reviews.

EU EMC obligation (independent of LVD threshold)

EMC Directive 2014/30/EU requires apparatus and fixed installations to meet EMC requirements when placed on the market and/or taken into service.

A 12 V architecture can be outside LVD scope while still inside EMC obligations for emissions/immunity.

Run EMC evidence planning for both 12 V and 110 V paths; do not mark low-voltage variants as compliance-free.

EU explosive-atmosphere (ATEX) split

European Commission ATEX guidance separates equipment obligations under Directive 2014/34/EU from workplace obligations under Directive 1999/92/EC.

LVD/EMC coverage does not automatically satisfy explosive-atmosphere requirements when the installation environment is potentially explosive.

When explosive-atmosphere exposure exists, add ATEX equipment + workplace evidence tracks before final part selection.

US control-circuit threshold

OSHA 1910.308 Class 1 power-limited definition is up to 30 V and 1000 VA.

12 V control loops can fit power-limited assumptions, but 110 V loops require different wiring/protection assumptions.

Tag circuits by class early and review conductor/protection choices before freezing architecture.

US approval, listing, and guarding boundary

OSHA 1910.303 requires approved equipment, allows listing/labelling as suitability evidence, requires listed equipment use per listing instructions, and requires guarding where exposed live parts are 50 V or above.

Voltage-match alone does not clear installation acceptance when listing conditions, enclosure form, or guarding assumptions are missing.

Attach listing documents and installation-condition checks to each selected coil code before procurement release.

US “acceptable equipment” definition path

OSHA 1910.399 definitions tie acceptable electrical equipment to listed/labeled/certified pathways with reference to 1910.7 NRTL logic; OSHA NRTL references route electrical products back to 1910.303/1910.307 sections.

Cross-region certificates alone may not satisfy US workplace acceptance if the applicable listing/certification path and use conditions are undocumented.

Document the target US acceptance route (listing/certification + installation conditions) for each shortlisted part number.

US hazardous (classified) location boundary

OSHA 1910.307 requires electrical equipment in hazardous locations to be approved for that location and marked by class/group/operating-temperature code, based on 40°C ambient unless another ambient is marked.

Ordinary-location assumptions are invalid when the install location is classified; voltage matching alone does not satisfy hazardous-location acceptance.

Run class/division/group/temperature-code matching before selection, and block release if classified-location evidence is incomplete.

UL 429 standards-scope boundary

UL 429 product detail scope covers electrically operated valves rated 600 V or less for ordinary locations and references UL 913 / UL 121201 for hazardous-location valve compartments.

A UL 429-only assumption does not automatically clear hazardous-location deployment requirements.

When application includes classified locations, add the hazardous-location standard path to the compliance package and do not release on UL 429 scope alone.

Enclosure standard scope

NEMA EN 10250-2024 covers enclosures for electrical equipment up to 1000 V and lists defined type conditions.

Standard scope does not guarantee every environment condition in-system (for example internal condensation/corrosion outcomes).

Treat enclosure type as one layer only; add environment-specific validation for the real installation context.

NEMA type vs IEC IP language

NEMA bulletin states IEC IP and NEMA types cannot be converted exactly one-to-one, and IEC IP does not include several NEMA test dimensions.

An IP code alone does not prove equivalence to a specific NEMA type for all hazards.

When project specs mix IP and NEMA language, force a side-by-side requirement matrix instead of shortcut mapping.

EU low-voltage market-access obligations beyond LVD

European Commission RoHS guidance keeps products with EEE components in scope unless excluded, and the Commission GPSR page states Regulation (EU) 2023/988 applies from December 13, 2024.

A 12V architecture being outside LVD scope does not remove substance-restriction or product-safety-route obligations.

Keep RoHS evidence and the relevant product-safety route active in the release checklist for low-voltage variants.

Nominal 12V versus transient stress envelope

TI references in ISO 7637-2 / ISO 16750-2 context show wide transient ranges (for example deep negative pulses and load-dump-like positive excursions) around nominal 12V systems.

Driver and suppression choices that pass on a static bench supply can fail field events if transient headroom is not validated.

Gate mobile/battery-powered projects with explicit surge, reverse-polarity, and load-dump checks before architecture freeze.

Thermal mitigation via driver architecture

TI TIDA-00289 reports up to 70% hold-power reduction with peak/hold control; TIDU578 example shows 1 A peak and 224 mA hold settings.

Benefit depends on coil/mechanics and validated pull-in timing; it is not an automatic drop-in for every actuator.

Use peak/hold as an explicit design option, then confirm force-at-stroke and release behavior after tuning.

Pickup-versus-hold electrical load envelope

ASCO and Danfoss public coil data list larger pickup demand than hold demand for AC coils, while Bürkert describes staged pull-in/hold current switching.

Hold-state power alone can understate startup electrical stress, causing intermittent pull-in or nuisance protection trips.

Freeze PSU/protection sizing from pickup demand first, then verify steady-state thermal behavior under hold conditions.

Boundary dimension

12 V DC path

110v / 120 V class path

Decision impact

Voltage-window interpretation

Low-voltage paths can still fail if measured rail drift is unknown. Class-III examples are explicitly low-voltage-only.

ANSI C84.1 framing requires range-based screening (Range A 114-126 V; Range B 110-127 V for 120 V class), as reflected in utility engineering handbooks.

Do not approve from nominal labels alone; use measured windows with tolerance context.

Transient-event tolerance (battery/mobile scenarios)

TI ISO 7637-2 / ISO 16750-2 context examples show nominal 12V paths can see deep negative pulses and load-dump-like positive surges.

Mains-class paths emphasize surge and isolation practices, but low-voltage mobile paths still need transient gating rather than static-rail assumptions.

If deployment includes vehicle/battery events, transient validation becomes a release gate, not a post-launch debug task.

Duty under thermal stress

Magnet-Schultz G XX provides reference-temperature conversion factors for DC duty evaluation.

No universal public conversion table across all AC families; require part-level duty + ambient proof.

Treat universal derating constants as pending evidence unless tied to a specific product family.

Catalog force baseline mismatch

Magnet-Schultz FMME (Stand 012025) ties force values to 90% rated voltage, 24 V ±10%, reference assumptions, and allows about ±10% force spread.

Kendrion technical explanations tie force to 90% rated voltage and warmed condition, and note listed force can rise around 20% at rated voltage.

Normalize baseline conditions before comparing force claims; reject cross-vendor force ranking without matched test basis.

Duty-dependent force and power spread

Johnson open-frame and tubular examples show large duty/stroke dependence (for example B41: 2.7 lbf at 100% ED vs 11.0 lbf at 25% ED; tubular 100 push falls sharply with stroke under continuous duty).

The same normalization principle applies in mains-class coils: duty mode and stroke basis must match before comparing vendor claims.

Block RFQ release when force is quoted without duty mode, stroke point, and safety-factor context.

Suppression and release behavior

Direct DC-side switching can create high deactivation overvoltage if suppression is not designed.

Rectification and suppression topology can change hum/noise and release timing for 110/120 V class architectures.

Quote and test plans must lock suppression topology before final acceptance.

Compliance and control-circuit class

Can fall in low-voltage/power-limited control assumptions depending on source limits (for example OSHA Class 1 threshold).

Usually outside low-voltage power-limited assumptions and inside higher-voltage compliance/wiring obligations.

Use separate compliance checklists for 12 V and 110 V architectures even when the mechanism is the same.

US listing-use and guarding checks

Still requires approved equipment and listing-use alignment when installed in US workplaces; low-voltage alone is not an exemption.

Also requires listing-use alignment, with additional guarding expectations for exposed live parts at or above 50 V.

Add listing documents and installation-condition verification to both paths before PO release.

Hazardous-location classification and marking path

Low voltage does not remove hazardous-location obligations; classified areas still require location-approved equipment and proper marking.

120/110 V paths in classified areas need explicit class/group/temperature-code matching and cannot inherit ordinary-location assumptions.

If any site area is classified, switch to hazardous-location compliance workflow before vendor shortlist freeze.

Regional acceptance route (EU ATEX vs US NRTL)

Below-LVD voltage classes can still require ATEX equipment/workplace evidence in EU explosive-atmosphere cases and acceptable-equipment proof in US workplaces.

Mains-class paths add the same regional acceptance obligations on top of voltage/duty checks; certificate sets are not universally interchangeable.

Freeze region-specific compliance route per site (EU/US) before purchase to prevent late audit failures.

Pickup-versus-hold electrical loading

Driver-controlled DC paths can reduce hold current after pull-in, but startup current still defines minimum source capability.

AC-family tables often show significantly higher pickup demand than hold demand, especially in direct-AC coil options.

Do PSU/protection sizing on pull-in demand and keep hold value for thermal checks, not for startup sizing.

High-duty operating-cost exposure

DC architecture choices can shift continuous real-power draw; a 1 W continuous delta equals about 8.76 kWh/year per actuator before tariff scaling.

AC and rectified paths can also produce material fleet OPEX spread when duty is high, especially if hold-current reduction is not used.

Run duty-weighted kWh and tariff sensitivity (EIA baseline + site tariff) before architecture lock.

Supply frequency assumption (AC path)

Pure DC paths avoid mains-frequency force drift, but rectified paths still inherit ripple and decay behavior from source and suppression choices.

Kendrion notes 50 Hz coil designs can lose about 30% force at higher frequency and heat up more at lower frequency.

Treat 50/60 Hz mismatch as a revalidation trigger, not a clerical detail.

Ingress and enclosure assumptions

Voltage class does not imply sealing class; some families publish open-frame or lower enclosure baselines.

Kendrion public data shows variant-dependent ratings (for example, IP40 baseline with optional IP54, connector-dependent IP65).

Environmental acceptance must reference exact series + connector, not voltage keyword.

Option

Best fit

Strength

Limit

Reject when

Direct 110/120 VAC coil

Simpler panels with compatible AC coil options

No separate DC stage; straightforward wiring in legacy AC cabinets.

Inrush/holding split can be large (for example 40 VA inrush / 16 VA hold in public ASCO tables), and line variation plus 50/60 Hz mismatch can reduce margin if force and duty are tight. Real-power and tariff uncertainty also makes early OPEX estimates noisy without measured data.

Duty margin is thin or acoustic/ripple constraints are strict without test data.

UL-approved 110/120 V class coil families (vendor catalog route)

Teams narrowing supplier shortlist from published voltage/frequency classes before part-code lock

Public Danfoss and ASCO materials show 110/120 V class availability with explicit 50/60 Hz classes and documented approval pathways.

Catalog-level class availability does not replace part-code-level proof for hazardous-location, ingress, and duty specifics.

Application requires classified-location approval or missing part-specific certificate/configuration evidence.

AC source + bridge rectifier

Need steadier current behavior while keeping AC panel input

Reduces some AC behavior variability and can improve control consistency.

Still needs suppression and thermal proof; rectifier path cannot be assumed equivalent by default.

Architecture is undocumented or supplier has not approved the exact drive path.

AC source + half-wave rectifier

Cost-constrained intermittent use with validated behavior

Minimal hardware footprint.

Higher ripple/hum/response drift risk under heavier duty.

Medium/high duty or force-sensitive positioning is required.

Regulated DC actuator path

Tighter response control and better repeatability

Cleaner controllability and easier integration with managed drivers.

Adds supply complexity and requires explicit switching/suppression design.

Project cannot support driver complexity or validation budget.

Peak/hold current-controlled DC driver path

Thermal-margin-limited systems needing faster pull-in with lower hold heat

Public TI references report up to 70% hold-power reduction, while Bürkert reports up to 80% energy reduction for dual-coil kick/drop architecture with short pull-in staging. At 24/7 operation, every 1 W continuous reduction is about 8.76 kWh/year per actuator before tariff multiplication.

Requires calibrated pull-in/hold timing, current-limiting resistor sizing for supply range, fast-recovery recirculation diode selection, and actuator-specific pull-in repeatability proof.

No validation budget exists for control tuning or for resistor/diode sizing across voltage and temperature states.

Class-III low-voltage DC family (example boundary)

Projects designed around low-voltage control architecture

Clear low-voltage usage boundary and part-level force curves for screened configurations.

Not a direct substitute for 110/120 VAC systems without approved conversion architecture.

The project is mains-only and no validated low-voltage conversion path exists.

Risk

Trigger

Impact

Mitigation

Compliance-scope mismatch

12 V and 110 V variants are processed with the same legal/compliance evidence set.

Certification package gaps surface late, delaying release or causing redesign.

Split compliance workflow by voltage class at project kickoff (for example LVD in-scope vs out-of-scope paths) and keep EMC evidence in both paths.

LVD out-of-scope misread as no EU compliance obligation

12 V architecture is marked “no compliance action needed” only because it is outside LVD thresholds.

EMC evidence is skipped and non-compliance appears during market-access checks.

Keep EMC Directive checks active for equipment placed on the market or taken into service, regardless of LVD threshold outcome.

Voltage-class overconfidence

Spec says “12 volt electric solenoid actuator” or “110v solenoid actuator” but no measured loaded voltage window exists.

Force and thermal margins drift outside expected behavior.

Record real line window, compare to nameplate and tolerance before part freeze.

12V transient envelope ignored in mobile/battery systems

Design assumes clean 12V DC bench supply and skips ISO-style surge/load-dump context checks for the real power source.

Driver, suppression, or coil path can fail under field transients despite passing nominal-voltage bench tests.

Add explicit transient validation gates (surge, negative pulse, reverse-polarity, load-dump context) before architecture release.

Low-voltage compliance blind spot (RoHS/GPSR omitted)

Team ends compliance review after deciding the 12V variant is outside LVD scope.

Market-access or audit issues appear later because material and product-safety obligations were not documented.

Keep RoHS and relevant product-safety route checks active for low-voltage variants and attach evidence in the release pack.

Pickup-load under-sizing

Power and protection are sized from hold-state values only, while actual pickup inrush demand is higher.

Intermittent pull-in failure, nuisance trips, or startup instability appears despite acceptable steady-state hold readings.

Use pickup/inrush demand as the primary sizing gate, then confirm hold-state thermal margins in long-run duty checks.

US listing-use mismatch

Selected coil option is installed without verifying listing/labelling conditions and installation instructions.

Site acceptance or safety audit fails even when voltage and force calculations pass.

Include approval/listing evidence and instruction-conformance checks in the release package for each selected coil code.

US acceptable-equipment path not documented

Project assumes non-US certificates are enough for OSHA workplace acceptance without defining the applicable listed/labeled/certified pathway.

Late-stage acceptance delays occur when auditors request NRTL-route evidence and installation-condition alignment.

Map each selected part number to the intended OSHA acceptable-equipment path and keep that evidence in the release packet.

Hazardous-location misclassification

Classified-area deployment is treated as ordinary-location installation because voltage/duty screening passed.

Regulatory acceptance and site safety can fail when class/group/temperature-code evidence is missing or mismatched.

Apply OSHA 1910.307 gate early and block procurement until classified-location approval and marking evidence is complete.

Frequency mismatch hidden by nominal voltage labels

50/60 Hz compatibility is assumed from voltage class naming without part-family verification.

Force and heating behavior diverge from expected catalog values during field operation.

Require frequency-fit confirmation in PO release criteria and revalidate force/duty when rated and actual frequency differ.

Duty ambiguity

PO issued without ED/S1 statement for exact coil code.

Unexpected overheating and shorter life in field duty pattern.

Require published duty + ambient basis as a release gate.

Duty-mode force overclaim

Headline force is reused across duty modes without checking duty-specific tables or stroke context.

Mechanism fails pull-in/hold targets because real force is lower in the chosen duty class.

Require duty-specific force-at-stroke data and keep a design safety factor (for example 1.3 to 1.5) in the release criteria.

Thermal derating assumption mismatch

Catalog duty is copied into hotter reference conditions without conversion or part-specific verification.

Field duty exceeds thermal capability even when nominal ED appears sufficient.

Apply family-specific conversion factors where published or escalate to supplier thermal proof.

Force-at-stroke mismatch

Design uses headline force instead of force at actual stroke/gap.

Actuator underperforms in final mechanism.

Use stroke-resolved force data with explicit margin (>1.2x preferred).

Drive architecture unresolved

Direct AC, bridge, or half-wave path not fixed before quote approval.

Noise, response, and thermal outcomes become unpredictable.

Lock architecture and re-validate duty/force at that exact drive path.

Suppression network omitted or under-specified

Direct DC-side switching path is used without explicit suppression and release-time target.

Switching stress and release behavior drift, creating reliability and timing failures.

Specify suppression topology and verify both overvoltage and release-time behavior before release.

Protection class / ingress mismatch

Voltage keyword or IP shorthand is used as proxy for full enclosure suitability.

Incorrect family selection for environment or control architecture.

Check class and IP claims against exact series + connector + mounting configuration, and avoid one-to-one IP↔NEMA assumptions.

Control strategy over-assumption

Peak/hold driver values are copied from a reference design without actuator-specific pull-in validation.

Pull-in failures or unstable hold current appear under tolerance and temperature spread.

Treat peak/hold values as starting points only; validate pull-in timing and minimum hold current on the actual mechanism.

Operating-cost blind spot in high-duty fleets

Architecture is chosen from force/duty pass criteria only, without converting duty-weighted power differences into annual kWh and tariff impact.

Fleet OPEX drifts beyond budget even though technical qualification passed.

Run duty-weighted kWh scenarios using EIA baseline prices and site tariffs before architecture freeze.

Safety-critical misuse

Generic solenoid actuator selected for dropped-load or power-fail hold case.

Potential compliance and safety failure at system level.

Escalate to dedicated safety-reviewed architecture and compliance workflow.

Source

Fact extracted

Decision use

Review date

European Commission LVD overview (Directive 2014/35/EU)

Scope is 50-1000 VAC and 75-1500 VDC, and the directive has applied since April 20, 2016.

Separates 110 V compliance paths from 12 V paths so certification assumptions are not copied blindly.

2026-05-09 review

European Commission EMC Directive page (Directive 2014/30/EU)

Directive 2014/30/EU was published on March 29, 2014 and replaced 2004/108/EC from April 20, 2016; apparatus and fixed installations must meet EMC requirements when placed on the market and/or taken into service.

Prevents the false conclusion that low-voltage (for example 12 V) variants are automatically free of EU compliance obligations.

2026-05-09 review

European Commission ATEX page (Directive 2014/34/EU + 1999/92/EC)

ATEX equipment directive 2014/34/EU applies from April 20, 2016, and the same page links separate workplace obligations under Directive 1999/92/EC; sixth-edition ATEX guidelines were issued in January 2026.

Adds an explicit explosive-atmosphere gate so EU hazardous-area projects do not rely on LVD/EMC checks alone.

2026-05-09 review

European Commission RoHS Directive page (2011/65/EU)

The page states RoHS entered into force on July 21, 2011 and that all products with electrical/electronic components are in scope unless explicitly excluded.

Prevents low-voltage projects from assuming “outside LVD” means material-compliance documentation can be skipped.

2026-05-09 review

European Commission GPSR standards page (Regulation (EU) 2023/988)

The page states the General Product Safety Regulation entered into force on June 12, 2023 and applies from December 13, 2024, replacing the old GPSD framework.

Adds a dated product-safety route boundary for 12V consumer-facing placements where LVD alone is not the whole story.

2026-05-09 review

OSHA 1910.308 special systems

Class 1 power-limited circuits are defined with limits up to 30 V and 1000 VA.

Adds a hard threshold for deciding when low-voltage control-circuit assumptions stop applying.

2026-05-09 review

OSHA 1910.303 general electrical requirements

Requires approved equipment, states listed/labeled equipment must be installed and used in accordance with listing/labelling instructions, and sets guarding requirement for exposed live parts at 50 V or more.

Adds US installation/audit boundary so voltage and force pass results are not mistaken for installation approval.

2026-05-09 review

OSHA 1910.399 definitions

Defines acceptable equipment using listed/labeled/certified pathways and references Nationally Recognized Testing Laboratory logic in 1910.7.

Clarifies how US workplace acceptance evidence should be structured for shortlisted coil codes.

2026-05-09 review

OSHA NRTL Program product references

OSHA NRTL product references for electrical equipment point to standards tied to 1910.303 and 1910.307 applicability checks.

Connects product certification path decisions directly to the same installation/hazard-location sections used in this checker.

2026-05-09 review

OSHA 1910.307 hazardous (classified) locations

Requires equipment in hazardous locations to be approved for that location and identified by class/group/operating-temperature code, with marking based on 40°C ambient unless another ambient is marked.

Introduces a hard stop for classified-area projects where ordinary-location assumptions would create approval and safety risk.

2026-05-09 review

UL 429 product detail page

Scope states electrically operated valves rated 600 V or less for ordinary locations and references UL 913 / UL 121201 routes for hazardous-location valve compartments; page metadata shows current edition and revision markers.

Defines where UL 429-based assumptions stop and when hazardous-location standards must be added to the release package.

2026-05-09 review

NEMA enclosure scope + NEMA/IP comparison bulletin

NEMA scope covers enclosures up to 1000 V, and NEMA documents state IEC IP and NEMA types cannot be converted exactly one-to-one.

Prevents false equivalence when procurement specs mix IP and NEMA language.

2026-05-09 review

TI TIDA-00289 and TIDU578

Reference design states up to 70% hold-power reduction; design guide example uses 1 A peak current and 224 mA hold current.

Introduces a concrete thermal-mitigation option and its validation caveat into drive-path comparison.

2026-05-09 review

TI DRV110 datasheet (Rev. G, March 2018)

Describes current-controlled peak/hold operation, 6- to 48-V DC and rectified 120/230-V AC usage, and recommends fast-recovery recirculation diode selection with explicit resistor-sizing tables for high-voltage supplies.

Adds implementation boundaries so peak/hold driver paths are treated as engineered architectures, not copy-paste defaults.

2026-05-09 review

TI TIDA-01179 automotive front-end reference design (ISO 7637-2 / ISO 16750-2 context)

The reference design highlights operation from 3 to 36 V DC and validates transient behavior up to 42 V with integrated surge/reverse-battery/load-dump protection context.

Creates an explicit transient-screening boundary for nominal-12V designs that may run on noisy battery rails.

2026-05-09 review

TI SSZT243 automotive transient-protection article

The article explains that pulse-1 conditions can go below -100 V and shows load-dump examples around +35 V, reinforcing that “12V” can include severe transients.

Prevents under-specified driver and suppression selections in mobile/battery-powered actuator deployments.

2026-05-09 review

ASCO 210 (8210) catalog

Publishes AC inrush/holding examples (for example 40 VA inrush and 16 VA hold), lists standard AC classes (120/240/480 VAC at 60 Hz and 110/220 VAC at 50 Hz), and provides distinct ambient ranges for AC vs DC coil families.

Supports pickup-load sizing and adds a source-backed 120/60 vs 110/50 class boundary before part-code lock.

2026-05-09 review

Danfoss HVACR solenoid coil series page

States the series is UL approved according to UL 429 and available in 110-240 V classes at 50 Hz, 60 Hz, or 50/60 Hz.

Adds cross-vendor evidence that 120V intent should be handled as voltage/frequency class screening rather than single-label approval.

2026-05-09 review

Parker Chart 8 solenoid coil data

Public rows include 12.0 V and 120/60, 110/50 entries at 22 W with variant-specific ingress/certification options.

Adds coil-code-level counterexample showing that shared chart family does not remove certification and configuration differences.

2026-05-09 review

Bürkert kick-and-drop dual-coil page

Describes staged pull-in to hold-current switching (about 500 ms) with published claims of up to 80% energy reduction and reduced self-heating.

Expands energy-saving discussion beyond one supplier family while keeping family-specific validation warnings explicit.

2026-05-09 review

U.S. EIA Table 4 retail electricity pricing

2024 U.S. average retail electricity price is 12.94¢/kWh (commercial 12.75¢/kWh, industrial 8.13¢/kWh).

Adds an auditable tariff baseline for duty-weighted architecture OPEX screening.

2026-05-09 review

U.S. EIA STEO Table 7c (April 2026)

All-sector U.S. average electricity price outlook is 13.63¢/kWh for 2025 and 14.21¢/kWh for 2026.

Adds near-term trend context so cost tradeoff checks avoid stale tariff assumptions.

2026-05-09 review

Pacific Power engineering handbook 1C.2.1

Handbook table for 120/240 service lists Range A 114/228 to 126/252 and Range B 110/220 to 127/254, aligned with ANSI C84.1 range framing.

Interprets 110v search intent as voltage class screening, not fixed-number assumption.

2026-05-09 review

Kendrion AC linear product page

Supply voltages list includes 110 VAC; duty cycle listed as 5-100%.

Supports canonical alias merge and duty-as-separate-axis guidance.

2026-05-09 review

Magnet-Schultz G XX technical explanations

Reference-temperature conversion factors are published for duty checks (for example: 35°C=1.0, 50°C=0.8, 80°C=0.5).

Adds a concrete boundary for temperature-dependent duty decisions instead of static ED assumptions.

2026-05-09 review

Kendrion technical explanations

Documents architecture-dependent behavior for AC/DC and rectifier paths, plus switch-off overvoltage and suppression tradeoffs.

Backs checker boundary logic for unknown/half-wave architecture cases and suppression planning.

2026-05-09 review

Kendrion high-performance and heavy-duty specs

Public specifications show series-dependent enclosure boundaries (for example IP40 baseline with optional IP54, and connector-dependent values up to IP65).

Prevents false assumption that voltage class implies equivalent ingress performance.

2026-05-09 review

Kendrion H-Line single-stroke linear-solenoid overview

The overview lists open-frame baselines such as IP00, thermal classes E (120) / B (130), and duty classes up to 100% ED depending on variant.

Makes enclosure and insulation-class checks explicit so integration risk is not hidden behind voltage keywords.

2026-05-09 review

Kendrion high-performance / high-power technical notes

Force and duty values are tied to 90% rated-voltage and warmed-up baselines with 70% magnetic-load assumptions; technical notes also state listed values can rise at rated voltage and set explicit duty/frequency boundaries.

Stops cross-family force and duty comparisons unless test baselines are normalized first.

2026-05-09 review

Magnet-Schultz GTA datasheet

Force data tied to 90% Uₙ and includes force spread tolerance; protection class statement also constrains use context.

Enforces force-at-stroke margin requirement rather than headline-force selection.

2026-05-09 review

Magnet-Schultz FMME + FMTX datasheet (Stand 012025)

Publishes 24 VDC ±10% baseline, S1 (100% ED), reference temperature assumptions, 90% rated-voltage force basis, and approximate ±10% force spread notes.

Provides a dated, product-family-specific baseline for force/duty normalization and procurement screening.

2026-05-09 review

Johnson Electric Ledex open-frame DC solenoid catalog

Catalog guidance recommends a 1.3-1.5 design safety factor, defines duty-cycle equation (ON/(ON+OFF)), and shows large duty-dependent force spread (for example B41: 2.7 lbf at 100% ED vs 11.0 lbf at 25% ED).

Adds quantitative guardrails against force overclaim when duty mode changes.

2026-05-09 review

Johnson Electric Ledex tubular 100 push datasheet

Force tables show steep stroke-dependent drop under 100% duty (for example 22.86 N at 0 mm versus 1.22 N at 15.24 mm) and much higher intermittent-duty force rows.

Reinforces that duty and stroke basis must be attached to every force claim in RFQ screening.

2026-05-09 review

Danfoss coil leaflet

Includes inrush/holding VA split plus coil-family voltage-variation and ambient boundaries (for example +10/-15% and -40 to +80°C for specific AC coils).

Supports tolerance-aware and ambient-aware filtering instead of voltage-only qualification.

2026-05-09 review

Claim

Status

Note

Open, model-level public database that maps every actuator part number to regional certifications (UL/CE/UKCA/ATEX) with revision history