MSM 22
Active22mm Anti-Vandal Stainless Steel Button
Schurter MSM 22mm vandal-resistant push button with dot LED in 316L stainless steel.
Common Applications
Premium anti-vandal button for transit stations, elevator lobbies, and medical equipment. The 22mm size provides a larger touch target while maintaining the tamper-resistant profile. Dot LED provides clear status indication without excessive brightness in dark environments.
Specifications
|
Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
|
Momentary
|
|
Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
|
CE, UL
|
|
Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
|
22mm
|
|
IP Rating
IP67: Dust-tight and survives temporary water submersion (1m for 30 min). Handles oil splashes, steam cleaning, and rain.
|
IP67
|
|
LED Type
The style of built-in LED illumination. Ring = glows around the edge. Dot = center point. Power symbol = illuminated power icon.
|
Dot LED
|
|
Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
|
316L Stainless Steel
|
|
Mechanical Life
How many press cycles before mechanical failure. Higher is better — 10M cycles at 100 presses/day = 274 years.
|
1,000,000 cycles
|
|
Vandal Rating (IK)
IK rating for impact resistance. IK09 = 10 joules (hammer blow). IK10 = 20 joules (serious vandalism). Higher is tougher.
|
IK09
|
Compatible Alternatives
These products are functionally equivalent cross-references from other manufacturers.
Installation Quick Reference
Panel cutout: 22mm. 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
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.
Where to Buy
Price range
$16.19 — $45.56
across 3 distributors
Quick Specs
- Actuator Function
- Momentary
- Certifications
- CE, UL
- Cutout Diameter
- 22mm
- IP Rating
- IP67
- LED Type
- Dot LED