M22-K10
ActiveM22 1NO Contact Block
Eaton M22 series 1NO contact block.
Common Applications
The Eaton equivalent of the Schneider ZB4-BZ101. Snaps onto any M22 button head. 1NO for start/enable functions. If you have Eaton M22 buttons, use Eaton contact blocks — they are designed for the same snap-fit mechanism.
Compatibility
Fits all Eaton M22 and legacy Moeller RMQ-Titan button heads. Not compatible with Schneider XB4 or ABB MP. Eaton contact blocks use a different snap-fit mechanism than Schneider.
Repair & Maintenance
Replace when button is intermittent. Same diagnostic process as Schneider: multimeter test, replace block. Keep minimum 5 spares per Eaton panel.
Specifications
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Contact Configuration
Normally Open — circuit is off until you press. Standard for start/go/enable functions.
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1NO
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Mechanical Life
How many press cycles before mechanical failure. Higher is better — 10M cycles at 100 presses/day = 274 years.
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10,000,000 cycles
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Series
The manufacturer's product family. Products in the same series share mounting systems and accessories.
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M22
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Terminal Type
How you connect wires. Screw clamp is most common in industrial. Spring cage is faster but requires proper ferrules.
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Screw clamp
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Installation Quick Reference
Mounting: Snap onto the rear of any compatible button body in the same series. The latch clicks audibly when properly seated. Some models require a mounting adapter.
Wiring: Terminals are marked NO (11/12) or NC (21/22). Use 0.5-2.5mm² wire with ferrules. Tighten to 0.8 Nm. Verify with a multimeter before energizing.
Dimensions
Wiring Diagram
Troubleshooting
Intermittent switching
Silver contacts are pitted from arcing. Replace the contact block — they are consumable parts. If arcing is severe, check that the switched load doesn't exceed the contact rating (typically 6A at 120VAC).
Contact block won't snap onto button body
Verify the contact block series matches the button head series (e.g., Schneider ZB4 blocks fit ZB4 heads only, not ZB5). Check for debris or damage on the mounting tabs.
Where to Buy
Price range
$17.68 — $77.96
across 3 distributors
Quick Specs
- Certifications
- UL, CSA, CE
- Contact Configuration
- 1NO
- Mechanical Life
- 10,000,000 cycles
- Series
- M22
- Terminal Type
- Screw clamp
What People Are Saying
“The Eaton equivalent of the Schneider ZB4-BZ101. Snaps onto any M22 button head. 1NO for start/enable functions. If you have Eaton M22 buttons, use Eaton contact blocks — they are designed for the sam”