WR250 VAR00 — configurable model

Name: WR250 VAR00 — configurable model
SKU: WR250

Model / article: WR250

WR250 VAR00 — configurable model is listed by Warner Electric in Spring-applied brakes. Published model data includes Maximum output speed: 3000 rpm; Operating temperature range: 0 to 40 °C. See the specification table for operating conditions and source evidence.

Published WR230/WR240/WR250 configurable models for mobile robots, cobots and SCARA applications. Each torque, coil-power and length choice stays paired. Model designations are not complete ordering codes. 24 VDC power basis, 0–40°C and 50% maximum duty apply. Illustration is a series reference.

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Official WR-Thin series illustration — extracted from PDF p.1

Product overview

Manufacturer / supplier: Warner Electric
Series: WR-Thin VAR00 configurable holding brakes
Component type: Spring-applied brakes
Source: Open published source

Published pricing

No verified public price indexed for this model. Contact PartMeld for a supplier inquiry.

Published specifications

Values are shown as published. Conditions, rating basis and source evidence apply to each value.

Latest source observation: 2026-09-20. Observation dates record evidence collection, not supplier re-verification.

Specifications and source evidence for WR250 VAR00 — configurable model
Specification	Published value	Conditions and source
Brake configuration notesModel-level statement	Configurable model; select hub, bore, voltage and mount with manufacturer. No standalone torque guarantee across configurations. No inferred SIL, PL, dual-channel certification, price or delivery time.	rule validated Source evidence Ordering and safety scope: Configurable model; select hub, bore, voltage and mount with manufacturer. No standalone torque guarantee across configurations. No inferred SIL, PL, dual-channel certification, price or delivery time. WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Ordering and safety scope Source observed: 2026-09-20View source
Brake configuration pointsModel-level statement	0.7 N·m static torque → 20 / 2.2 W, B maximum 14 mm (overexcitation required); 2 N·m static torque → 22 / 2.4 W, B maximum 20 mm (overexcitation required); 5 N·m static torque → 28.6 / 3.2 W, B maximum 25 mm (overexcitation required)	rule validated Operating conditions identity Choices within one configurable model, not separate published ordering codes operating points [{"max_brake_length_B_mm":14,"power_condition":"24 VDC; overexcitation required when two power values are shown","rated_power_values_W":[20,2.2],"static_torque_Nm":0.7},{"max_brake_length_B_mm":20,"power_condition":"24 VDC; overexcitation required when two power values are shown","rated_power_values_W":[22,2.4],"static_torque_Nm":2},{"max_brake_length_B_mm":25,"power_condition":"24 VDC; overexcitation required when two power values are shown","rated_power_values_W":[28.6,3.2],"static_torque_Nm":5}] power Two power values require overexcitation; duration and voltage sequence unspecified. Do not mix rows. voltage VDC 24 Source evidence Matched torque / power / length choices: 0.7 N·m static torque → 20 / 2.2 W, B maximum 14 mm (overexcitation required); 2 N·m static torque → 22 / 2.4 W, B maximum 20 mm (overexcitation required); 5 N·m static torque → 28.6 / 3.2 W, B maximum 25 mm (overexcitation required) WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Matched torque / power / length choices Source observed: 2026-09-20View source
Brake disc backlashModel-level statement	2.5 °	rule validated Operating conditions scope Disc interface, not robot joint output backlash Source evidence Hexagonal-disc backlash: 2.5 ° WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Hexagonal-disc backlash Source observed: 2026-09-20View source
Brake duty cycleModel-level statement	50 %	rule validated Operating conditions qualifier maximum scope Document does not define cycle period; do not infer continuous operation Source evidence Maximum duty cycle: 50 % WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Maximum duty cycle Source observed: 2026-09-20View source
Brake mounting referenceModel-level statement	PCD F nominal 85 mm; screws 3 x M4; inner D maximum 35 mm	rule validated Operating conditions options Alternative mounting, PCD and screws require manufacturer assistance scope D is not shaft bore; final hub size, bore, length and position require manufacturer selection Source evidence Mounting reference: PCD F nominal 85 mm; screws 3 x M4; inner D maximum 35 mm WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Mounting reference Source observed: 2026-09-20View source
Brake operationModel-level statement	Spring-applied, electrically released static holding/parking brake	rule validated Operating conditions scope Maximum rotational speed is not a dynamic braking speed rating; no stop-energy capability inferred Source evidence Operation: Spring-applied, electrically released static holding/parking brake WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Operation Source observed: 2026-09-20View source
Maximum output speedModel-level statement	3000 rpm	rule validated Operating conditions scope Rotational speed; not dynamic braking speed or emergency-stop rating Source evidence Maximum speed: 3000 rpm WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Maximum speed Source observed: 2026-09-20View source
Operating temperature rangeModel-level statement	0 to 40 °C	rule validated Source evidence Temperature: 0 to 40 °C WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Temperature Source observed: 2026-09-20View source
Outer diameterModel-level statement	92 mm	rule validated Operating conditions qualifier maximum scope Brake A, not complete mounting assembly Source evidence Maximum brake diameter A: 92 mm WR250 / MCF P-8824-WE-EN-US 01/25 / PDF p.2 / Maximum brake diameter A Source observed: 2026-09-20View source

Technical documents and resources

WR-Thin technical sheet with paired ratings and drawing — p.2

Confirm the exact configuration, price, availability and operating conditions with the supplier before ordering.

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