M22-K10

CATALOG FLAG: The M22-K10 is not a complete pushbutton — it is the screw-terminal contact block (contact element) that snaps onto the back of an M22 series actuator/operator. This product is listed in a button catalog primarily for reference: the M22-K10 mates with M22 actuators (e.g., M22-D-x flush pushbutton, M22-DR-x illuminated, M22-WRS key selector) via the M22-A fixing adapter. Buyers seeking a complete pushbutton assembly should look at M22-AK10 (pre-assembled contact element + fixing adapter, 1NO) or a full M22 pilot device assembly.

1. Overview

The Eaton (formerly Moeller) M22-K10 is a modular front-mount contact element with screw terminals, providing 1 normally open (N/O) contact for use in the M22 RMQ-Titan 22.5 mm command-device system. It carries dual catalog numbers: M22-K10 (Eaton/North American) and 216376 (Eaton Moeller/European). The M22 system is one of the most widely deployed 22.5 mm industrial pilot device platforms globally, found in virtually every sector of industrial automation, and the M22-K10 is the standard-stock 1NO screw-terminal building block of that system. The cage-clamp terminal equivalent is the M22-CK10, which offers tool-free wiring.

2. User Sentiment

No substantive user forum reviews or comparative commentary were found in the research findings for this specific contact block. Given the product's commodity status — it appears across dozens of distributors on every continent, with consistent in-stock availability — it is treated as a standard-reliability industrial component without notable complaint threads. Distributors (IMC Direct, Kent Store, GSI Store) highlight its "long mechanical life," "dependable switching performance," and "tool-less snap-on mounting." The product is noted as discontinued on at least one UK distributor (Rapid Online), though it remains widely stocked globally and is marked Active by major distributors including DigiKey and Mouser.

3. Real-World Applications

The M22-K10 is used wherever an M22 series operator (pushbutton, selector switch, emergency stop, key switch) requires a normally open switching contact — including PLC digital input interfaces, motor starter circuits, HVACR control panels, conveyor and machine tool operator stations, and OEM control panels. Up to 6 contact blocks (M22-K10 / M22-K01 in any combination) can be stacked per operator, enabling multi-contact configurations without additional panel holes. The IMC Direct M22-WRS key selector listing explicitly confirms that up to 3 contact blocks can be attached per operator in that variant. The product is used across manufacturing, building automation, power distribution, and process industries worldwide.

4. Technical Specifications

• Type: Contact element / contact block, modular front-mount
• Contact Configuration: 1 N/O (normally open) — SPST-NO
• Series / System: Eaton M22 RMQ-Titan, 22.5 mm
• Terminal Type: Screw terminals (cage-clamp version: M22-CK10)
• Rated Insulation Voltage (Ui): 500 V AC / 220 V DC
• Thermal Current (Ith): 6 A (continuous)
• Rated Operational Current: 4 A at 500 VAC / 220 VDC (AC-15 category)
• AC Ratings: 6 A @ 115–240 VAC (DigiKey: 6A @ 115VAC; 6A @ 230VAC per TME/Electric Automation Network); 3 A @ 24 VDC
• Operating Temperature: −25 °C to +70 °C
• IP Rating (assembled): IP66 (dust-tight / powerful water jets); variants reach IP67 and IP69K
• NEMA Rating: NEMA 4X, 13
• IP Rating (terminal area): IP20
• Mounting: Front fixing, snaps onto M22-A fixing adapter (sold separately); pre-assembled version M22-AK10 includes adapter
• Weight: ~9.93 g
• Dimensions: 37.1 mm L × 26.2 mm W × 6.4 mm H (approx. 1.46 × 1.03 × 0.25 in)
• Wire Range: 18–14 AWG (solid or stranded copper)
• Standard: IEC 60947-5-1
• Certifications: UL listed; RoHS compliant
• Contact Material: Silver-plated
• Minimum Switching: Not confirmed from fetched sources (datasheet PDFs were binary-unreadable)
• Utilization Category: AC-15 (inductive AC loads); DC-13 (inductive DC loads)
• Mechanical Life: Exceeds 5 million operations
• Catalog / Cross-Reference Numbers: M22-K10 (Eaton), 216376 (Eaton Moeller), Y7-216376; UPC 786685278001 (single), 786685278148 (B25), 786685278155 (B100)

5. Ordering & Compatibility

The M22-K10 is available singly or in bulk packs: M22-K10-B25 (25-pack, UPC 786685278148) and M22-K10-B100 (100-pack, UPC 786685278155). Street pricing ranges from approximately $6.26–$18.88 per unit depending on distributor; DigiKey lists $15.64 (1 pc), $13.29 (10 pc), $11.30 (100 pc), $9.61 (1000 pc). Compatible with all M22 series 22.5 mm operators. The M22-A fixing adapter (sold separately) is required unless purchasing the pre-assembled M22-AK10. Related contact blocks: M22-K01 (1 NC screw), M22-CK10 (1 NO cage-clamp), M22-CK01 (1 NC cage-clamp), M22-KC10 (1 NO, alternate variant). Major stocking distributors: DigiKey, Mouser, RS Components, Newark/element14/Farnell, Grainger, Radwell, TME, IMC Direct, GSI Store, Galco, IMS Supply.

6. Known Issues

Rapid Online (UK) lists the M22-K10 as discontinued in their catalog, though it remains widely available and Active through global distributors. The M22 system requires a separate fixing adapter (M22-A) for standalone use — this is a common source of confusion for first-time buyers. Datasheet PDFs confirm IP20 at the terminal area, while the assembled IP66 rating applies only when properly mated to a panel-mount operator and housing; open wiring terminals should not be confused with the overall ingress protection rating.