M22-L-R

1. Overview

The Eaton M22-L-R is a 22mm flush-mount indicator light lens/operator unit in the RMQ-Titan (M22) series — it is an indicator light, not a pushbutton. The "L" designates lamp/light operator and "R" designates red. It is the lens/housing only; a separate LED element (M22-LED-R for 12-30V AC/DC or M22-LED230-R for 85-264V AC/DC) and M22-A mounting adapter must be added for a complete functioning indicator. Formerly branded Moeller, now Eaton catalog/art. number 216772. Pre-assembled complete versions are M22-L-R-R (12-30V) and M22-L-R-230R (85-264V).

2. User Sentiment

No dedicated forum threads or consumer reviews were found — this is a commodity industrial component. Distributors consistently highlight the IP67/69K build for harsh environments and the modular "order what you need" approach as practical advantages for stocking spares and simplifying panel assembly. An industry blog (Airline Hydraulics) notes the M22 family is popular for motor control panel status indicators. No complaints or quality issues were reported across any source.

3. Real-World Applications

Used in industrial control panels to signal equipment status — running, faulted, ready, or stopped states on motor control centers, machine tools, conveyor systems, and process equipment. Compatible with 22mm standard panel cutouts per IEC machinery standards. The SmartWire-DT-compatible variant (with optional SWD-RMQ adapter) suits intelligent wiring architectures that eliminate discrete wiring runs to each pilot device. Deployed globally across manufacturing, utilities, and building automation.

4. Technical Specifications

• Type: Indicator light lens/operator only (NOT a pushbutton; LED element ordered separately)
• Color: Red lens / red illumination
• Series: RMQ-Titan (M22), formerly Moeller
• Mounting Hole: Ø22.5mm panel cutout; front bezel 29.7mm
• Style: Flush (flat front)
• IP Rating: IP66, IP67, IP69K
• NEMA Rating: NEMA 4X, NEMA 13
• Operating Temperature: -25°C to +70°C
• LED Lifespan: Up to 100,000 hours; mechanical ops >5 million
• Contact Resistance (Rk): 47 Ω
• Standards: IEC/EN 60947, VDE 0660; RoHS compliant
• Country of Origin: Germany (EAN: 4015082167721)
• Compatible LED Elements: M22-LED-R (12-30V), M22-LED230-R (85-264V), M22-FLED-R, M22-LEDC-R
• SmartWire-DT: Compatible via SWD-RMQ adapter; lens supports laser engraving

5. Ordering & Compatibility

Lens-only unit M22-L-R retails at approximately $8-$14 USD (£4.93-£5.56 GBP). Pre-assembled M22-L-R-R (12-30V) ~$24-$25 USD. The M22-LED-R module adds ~$11-$12 USD separately. Full set: M22-L-R + M22-A + M22-LED-R (RS stock 78639219). Available globally via Eaton direct, Mouser, DigiKey, RS Components, Farnell/element14, Newark, Platt Electric, TME, Rapid Electronics (UK), and regional distributors in Asia-Pacific, Middle East, and Latin America.

6. Known Issues

The lens-only nature of M22-L-R can cause ordering confusion — buyers expecting a complete indicator must also order the M22-A adapter and an LED element separately, or choose the M22-L-R-R/-230R complete variants. No quality defects or reliability issues reported. TME listed the standalone lens as out of stock at time of research, though it remains widely available elsewhere.