M22-PV-K01

1. Overview

The Eaton M22-PV-K01 is a complete, non-illuminated emergency stop device from Eaton's RMQ-Titan® M22 modular pushbutton series. It features a 22.5 mm red mushroom-head knob actuator with push-to-latch / pull-to-release (push-pull) maintained action and one normally closed (1NC) contact pre-installed. The device is sold as a complete, ready-to-install unit — combining the actuator head and contact block — making it suitable for rapid deployment on machine panels, control enclosures, and safety circuits. It mounts into a standard 22 mm (22.5 mm) notched panel cutout; the anti-rotation tab prevents rotation during installation and in service. Eaton markets the M22 line globally under both the "Eaton" and legacy "Moeller/Cutler-Hammer" brands.

2. User Sentiment

No public customer reviews were found on distributor pages reviewed (Spec-Tech Industrial, Eastern Industrial Automation, KentStore, Yale Electric Supply). However, the product is widely stocked across industrial distributors in the US, EU, and Asia, and is consistently listed at competitive price points ($24–$32 USD retail at US distributors vs. MSRP ~$75), suggesting strong commercial adoption. The M22 series as a whole is well-regarded in industrial automation for its modular flexibility, IP69K rating, and support for up to six contact blocks per operator head. Users of the M22 platform frequently cite the snap-in assembly and space-saving panel design as practical advantages.

3. Real-World Applications

The M22-PV-K01 is used in machine guarding and safety circuits wherever a maintained emergency stop is required — the push-to-latch action ensures the circuit remains open (motor or actuator de-energized) until an operator deliberately pulls the mushroom head to reset. Typical applications include:

• Industrial machinery: CNC machines, conveyor systems, packaging lines, robotic cells
• Process equipment: pumps, compressors, mixers requiring local emergency isolation
• Stationary equipment inside and outside factory environments (NEMA 4X and IP69K ratings permit wash-down environments, food and beverage, chemical processing)
• Panel builders and OEMs requiring a pre-wired complete E-stop unit without separate contact block assembly
• Safety systems conforming to ISO 13850 / EN 418 (machinery safety — emergency stop)

The Chinese distributor Aize Industrial (Shanghai) stocks and markets it for industrial automation applications in the Asia-Pacific region, reflecting its broad international use.

4. Technical Specifications

• Type: Modular push-pull emergency stop (maintained), complete device
• Series: Eaton RMQ-Titan® M22
• Part Number: M22-PV-K01 (also referenced as M22-PV/K01; Eaton catalog number 216515)
• Mounting Hole: 22.5 mm notched (anti-rotation)
• Mushroom Head Diameter: ~38 mm (red)
• Actuator Color: Red
• Bezel / Housing: Silver (plastic)
• Action: Maintained (push to latch, pull to release)
• Contact Configuration: 1NC (1 normally closed), SPST-NC
• Illumination: Non-illuminated
• Rated Current (AC-15): 6 A at 115 V AC; 6 A at 230 V AC; 4 A at 400 V AC; 2 A at 500 V AC
• Rated Current (DC-13): 3 A at 24 V DC; 0.3 A at 220 V DC
• IP Rating: IP66 standard / IP67 and IP69K
• NEMA Rating: NEMA 4X, NEMA 13
• Mechanical Life: >100,000 operations
• Standards Compliance: ISO 13850 / EN 418, CE, CSA, CCC, Lloyd's Register, GoST-R, Bureau Veritas
• Weight: ~0.11 lb (50 g)

5. Ordering & Compatibility

The M22-PV-K01 is a complete device (actuator + 1NC contact block integrated). It is directly interchangeable with other M22-series complete E-stop variants:

• M22-PVS-K01 — smaller 30 mm mushroom head variant
• M22-PVT-K01 — twist-to-release version (instead of pull-to-release)
• M22-PVLT-K01-R — illuminated twist-to-release variant

Additional contact blocks (sold separately) can be added to the base operator head; compatible blocks include:

• M22-K01 (1NC), M22-K10 (1NO), M22-K11 (1NO/1NC), M22-K20 (2NO), M22-K02 (2NC), M22-K21 (2NO/1NC), M22-K12 (1NO/2NC)
• Up to 6 contact blocks can be stacked on one operator

The M22-PV operator (without pre-installed contact) is also available separately for custom contact configurations. ASi fieldbus adapter modules are compatible for networked safety applications.

Widely available from US distributors including Spec-Tech Industrial (~$24), KentStore (~$32), Yale Electric Supply, Eastern Industrial Automation, and Newark Electronics (Farnell). Also stocked by European and Asian distributors.

6. Known Issues

No significant issues reported. The product is a mature, well-established industrial component. The push-pull (rather than twist-to-release) mechanism is sometimes noted as a design consideration — some safety standards and facility policies prefer twist-to-release to prevent accidental reset; in those cases the M22-PVT-K01 (twist variant) is recommended instead. No reports of premature failure, contact bounce, or IP rating failures were found in available sources.