M22-D-G
ActiveM22 Green Flush Push Button
Green flush momentary push button for Eaton M22 series. 22.5mm cutout, IP67 front. Complete unit with 1NO contact.
Common Applications
Eaton equivalent of the Schneider ZB4-BA3. Found on European-built machinery, food processing equipment, and packaging lines. The M22 series is popular in the automotive manufacturing sector — many German, Austrian, and Czech machine builders spec Eaton by default. IP67 front face with IP69K option handles high-pressure washdown in food and beverage plants. The modular RMQ-Titan system means you can mix and match heads, contact blocks, and LED modules from the same M22 family.
Commonly Found On
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Momentary
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Actuator Shape
The physical shape of the pressable surface.
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Round
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Actuator Type
The button head style. Flush sits level with the bezel (prevents accidental presses). Extended protrudes for easy access.
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Flush
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Bezel
The ring around the button face. Chrome/silver for standard use, black for stealth panels.
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Silver
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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, ATEX
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Green
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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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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22.5mm
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Environmental Rating
Combined dust/water/impact protection. IP67 = dust-tight + survives temporary submersion. NEMA 4X = corrosion-resistant outdoor use.
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IP67, IP69K, NEMA 4X, NEMA 13
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Illumination
Whether the button has a built-in light. Illuminated buttons show status (lit = active).
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Non-illuminated
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IP Rating
IP67: Dust-tight and survives temporary water submersion (1m for 30 min). Handles oil splashes, steam cleaning, and rain.
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IP67 (front)
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Plastic/Metal bezel
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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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5,000,000 cycles
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Mounting Type
How the button attaches to the panel. Panel mount is standard — installs through a cutout from the front.
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Panel
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Operating Cycles
Rated number of operations. Higher is better.
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5 million
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Max Operating Temp
Highest temperature the button is rated to operate in.
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70°C
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Min Operating Temp
Lowest temperature the button is rated to operate in.
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-25°C
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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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Specs with this icon are linked to the manufacturer's original source page
You'll Also Need
This is a modular component. For a complete assembly, you may also need:
Compatible Alternatives
These products are functionally equivalent cross-references from other manufacturers.
IDEC
HW1B-M110G
HW Green Flush Push Button (1NO)
Omron
A22-FG-10M
A22 Green Flush Push Button (1NO)
Siemens
3SU1130-0AB40-1BA0
SIRIUS ACT Green Flush Push Button (1NO)
Eaton
M22-DP-G-K10
M22 Green Flush Push Button with 1NO Contact Block
ABB
MP3-10G
Modular Extended Green Push Button (1NO)
Siemens
3SU1100-0AB40-1BA0
SIRIUS ACT Green Flush Push Button Plastic (1NO)
Schneider Electric
ZB4-BA3
Harmony XB4 Green Flush Push Button Head
ABB
MP1-10G
Modular Green Flush Push Button (1NO)
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.
Dimensions
Wiring Diagram
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.
Videos
M22 Pushbuttons, Selector Switches, Pilot lights overview
Wire Push Buttons to PLCs Like a Pro - Easy Step Guide!
Master PLC Wiring: Safe Single-Button Start/Stop Control
Master PLC Programming: Start/Stop/Jog Circuits Made Simple
Welcome to RSP Supply Education Channel
Where to Buy
Price range
$2.26 — $13.56
across 4 distributors
Quick Specs
- Actuator Function
- Momentary
- Actuator Shape
- Round
- Actuator Type
- Flush
- Bezel
- Silver
- Certifications
- UL, CSA, CE, ATEX
What People Are Saying
“We're redoing all our control panels and need to pick one brand. The Eaton M22 IP67 rating is slightly better than ABB's IP65, but ABB's modular contact blocks snap on faster during assembly. Price is nearly identical from our distributor.”
“We standardized on Eaton M22 across all our plants. The modular system means we keep fewer spares — one contact block fits everything. Silver bezel looks professional too.”
Learn More
Data Sources
Specifications and product data sourced from the following references.
Eaton M22-D-G Product Page
https://www.eaton.com/us/en-us/skuPage.M22-D-G.html
Accessed March 28, 2026