Eaton · M22 Series

M22-D-Y

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UL CSA CE ATEX

M22 Yellow Flush Push Button

Part number: M22 - D - Y
Eaton M22 Series Introduced circa 2000
Eaton M22-D-Y — M22 Yellow Flush Push Button

Yellow flush momentary push button for Eaton M22 series. 22.5mm cutout, IP67 front. Complete unit with 1NO contact.

Common Applications

Yellow push button used for abnormal or intervention functions per IEC 60204-1 — yellow signals caution or an action to suppress an abnormal condition. Common on conveyor systems for jam-clear functions, packaging lines for fault reset, and process control panels for alarm acknowledgement. In many panel designs, the yellow button sits between the green start and red stop as the operator's go-to for clearing faults without a full restart. The M22 series IP67 front face handles washdown environments. Pairs with the M22-D-G (green start) and M22-D-R (red stop) for a complete three-button station.

Specifications

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE, ATEX
Color
Yellow
Contact Configuration
1NO
Cutout Diameter
22.5mm
IP Rating
IP67 (front)
Material
Plastic/Metal bezel
Mechanical Life
5,000,000 cycles
Mounting Type
Panel
Max Operating Temp
70°C
Min Operating Temp
-25°C

Specs with this icon are linked to the manufacturer's original source page

Compatible Alternatives

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

Installation Quick Reference

Panel cutout: 22.5mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).

Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.

Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.

Wiring Diagram

L T 11 12 NO (open) press ↓

Troubleshooting

Button doesn't respond when pressed

Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.

Works intermittently

Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.

Button feels mushy or doesn't click

The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.

Quick Specs

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE, ATEX
Color
Yellow
Contact Configuration
1NO

Data Sources

Specifications and product data sourced from the following references.

Eaton M22-D-Y Product Page

https://www.eaton.com/us/en-us/skuPage.M22-D-Y.html

Accessed March 29, 2026

Source