M22-XDL-R-X0

1. Overview

The Eaton M22-XDL-R-X0 (catalog 218159) is a passive button lens for Eaton's M22 / RMQ-Titan 22.5 mm modular control system — the translucent red flush cap that snaps onto an illuminated pushbutton actuator so the internal LED shines through. The -X0 suffix means it is printed with "0" (the zero/"O" = OFF marking). It is not a switch, not an actuator, and not a buzzer — it's the lens/cap component only. (This entry was previously mislabeled in a "buzzer module" cluster; it is a lens accessory.)

2. User Sentiment

The M22/RMQ-Titan modular system is a professional favorite for its clean snap-together design — actuator, lens, contact/LED blocks, and fixing adapter are ordered separately, and lenses like this let panel builders add legends/colors without changing the switch. As a passive lens there are no reliability complaints; the only "gotcha" is understanding the modular ordering (this lens needs the matching illuminated actuator, LED element, and contact block to form a working button).

3. Real-World Applications

The red, "0"-marked lit cap for an illuminated M22 pushbutton — typically an OFF/stop indication on machine and control panels where the button lights up. Pairs with an M22 illuminated actuator + LED + contact blocks.

4. Technical Specifications

• Type: Button lens / cap for M22 illuminated pushbutton (passive accessory)
• Color: red (translucent)
• Inscription: "0" (zero / OFF marking) — the -X0 suffix
• System: Eaton M22 / RMQ-Titan, 22.5 mm
• Mounting: flush; snaps onto illuminated actuator
• Sealing: IP67 / IP69K, NEMA 4X (assembled)
• Approvals: UL, CSA, CE

5. Ordering & Compatibility

Fits Eaton M22 illuminated pushbutton actuators (RMQ-Titan). This is a component, not a complete button: to build a working illuminated button you also need the actuator, an LED element, contact block(s), and the fixing adapter. Widely stocked (Mouser, Newark, etc.) as Eaton 218159. Other colors/inscriptions exist in the M22-XDL family (e.g. -ETCH for blank/etchable).

6. Known Issues

None as a passive lens. The practical care point is modular selection — order the compatible actuator, LED, and contacts to match, and confirm color/inscription (red, "0"). It is not a standalone illuminated device and not a signaling/buzzer part.