Eaton · M22 Series

M22-DL-R

Active
UL CSA CE ATEX

M22 Illuminated Red Flush Push Button 24V

Part number: M22 - DL - R
Eaton M22 Series Introduced circa 2000
Eaton M22-DL-R — M22 Illuminated Red Flush Push Button 24V

Illuminated red flush push button with integrated 24V LED for Eaton M22 series. 22.5mm cutout, IP67 front.

Common Applications

Illuminated red push button from the Eaton M22 series — the LED lights when the stop circuit is active or a fault condition exists. Commonly found on European-built food processing and packaging machinery where operators need clear visual confirmation that the machine is stopped. The IP67 rating handles high-pressure washdown and oil splashes in food and beverage environments. The 24V LED connects to a PLC output or contactor auxiliary to display machine status. Pairs with the Eaton M22-D-G or an illuminated green M22 variant for a complete start/stop station with visual feedback.

Specifications

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE, ATEX
Color
Red
Contact Configuration
1NC
Cutout Diameter
22.5mm
Illuminated
Yes
IP Rating
IP67 (front)
LED Color
Red
LED Voltage
24V AC/DC
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 21 22 NC (closed) opens on 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
Red
Contact Configuration
1NC

Data Sources

Specifications and product data sourced from the following references.

Eaton M22-DL-R Product Page

https://www.eaton.com/us/en-us/skuPage.M22-DL-R.html

Accessed March 29, 2026

Source