Eaton · M22 ATEX Series

M22-PVL

Name: Eaton M22-PVL
Brand: Eaton
SKU: M22-PVL
Price: 48.61 USD
Availability: InStock

Active

ATEX ATEX Certified — approved for potentially explosive atmospheres (gas/dust zones). IECEX CE CE Marked — complies with EU directives (Low Voltage, Machinery, EMC). UL UL Listed — meets US safety standards. Required for NEC-inspected installations.

ATEX Emergency Stop 38mm Push-Pull

Part number: M22 22mm RMQ-Titan series

Eaton M22 ATEX Series Introduced circa 2010

Eaton M22 ATEX-certified emergency stop with push-pull reset.

Common Applications

Used on ATEX-certified motor control panels in petrochemical plants and grain handling facilities. Push-pull reset is preferred for cold storage and gloved operations in hazardous atmospheres.

Specifications

Actuator Function Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.	Push-pull
Actuator Type The button head style. Flush sits level with the bezel (prevents accidental presses). Extended protrudes for easy access.	Mushroom 38mm
ATEX Zone The hazardous area classification. Zone 1 = gas likely present. Zone 2 = gas unlikely. Zone 21/22 = combustible dust.	Zone 1, Zone 21
Certifications Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.	ATEX, IECEx, CE, UL
Color Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).	Red
Contact Configuration Normally Closed — circuit is on until you press. Standard for stop/emergency functions. Wire in series with safety circuits.	1NC
Cutout Diameter The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.	22.5mm
Explosion Group The gas group the device is certified for. IIC covers hydrogen (most restrictive). IIB covers ethylene. IIA covers propane.	IIC
IP Rating IP67: Dust-tight and survives temporary water submersion (1m for 30 min). Handles oil splashes, steam cleaning, and rain.	IP67
Temperature Class Maximum surface temperature. T6 (85°C) is most restrictive. T1 (450°C) is least. Must not exceed auto-ignition temp of the gas.	T6

Compatible Alternatives

These products are functionally equivalent cross-references from other manufacturers.

Schneider Electric

XB4-BS8445

ATEX Emergency Stop Twist Release

Installation Quick Reference

Panel cutout: 22.5mm. Mount with the yellow backing plate visible (required by EN/ISO 13850).

Wiring: Wire NC contacts in series with the safety relay input channels. Use dual-channel wiring for SIL 3 / PLe applications. Never wire directly to a motor contactor.

Testing: Press the e-stop and verify the machine stops within the required time. Test the reset mechanism. Repeat monthly per EN/ISO 13850.

Dimensions

Wiring Diagram

Troubleshooting

E-stop won't reset (twist/pull doesn't release)

Check for debris in the mechanism. For twist-release: turn clockwise 45-90 degrees. For push-pull: pull straight out firmly. If the mechanism is stuck, the internal latch may be damaged — replace the entire head assembly.

Machine doesn't stop when e-stop is pressed

Critical safety issue. Immediately lock out the machine. Check wiring — NC contacts must be in series with the safety relay. Verify the safety relay is functioning. A broken wire in an NC circuit should cause a stop, so check for a wiring bypass.

Safety relay faults after e-stop reset

The safety relay detects a cross-fault between the two monitoring channels. Check that both NC contacts on the e-stop are switching simultaneously. One contact may be welded closed — replace the contact block.