M22-WR

1. Overview

The Eaton M22-WR is a non-illuminated, 2-position maintained rotary selector switch actuator from Eaton's RMQ-Titan M22 series. It is a 22.5mm panel-mount actuator head only — it requires separately ordered contact blocks (e.g., M22-K10 for 1NO, M22-K01 for 1NC) and optionally the M22-A mounting adapter to attach up to 6 contact blocks on two levels. Catalog number 216855, the M22-WR is manufactured in Germany and sold globally under the Eaton (formerly Moeller) brand, with alternate catalog designation M22-WRQ used in some regions.

2. User Sentiment

No dedicated forum or community review threads were found in the 198 findings. However, on the Polish distributor automatyka-sklep.eu, the M22-WR carries a 4.6/5 rating from 13 customer reviews, indicating general satisfaction with the product. A Vietnamese listing (semiwa.com) shows 5/5 stars with 6 units sold. The product is consistently described positively across distributors as a reliable industrial-grade component. No significant complaints were surfaced; the main friction noted is that contact blocks are not included and must be ordered separately — a requirement that surprises some first-time buyers.

3. Real-World Applications

The M22-WR is widely used in industrial control panels, machine control cabinets, and operator stations across automation, manufacturing, and process industries. Specific labeled variants include AUTO/HAND (M22-WR-X91) and I/II (M22-WR-X92) for motor/drive mode selection. The RMQ-Titan series is described by Rexel Finland as enabling "modular system configurations using few basic components," reducing logistics costs and inventory investment. The component is suitable for any application requiring a maintained 2-position selector: drive selection, manual/auto mode switching, valve control.

4. Technical Specifications

• Type: Non-illuminated rotary selector switch actuator, 2-position maintained (no spring return)
• Series: RMQ-Titan M22
• Catalog Number: M22-WR (216855)
• Mounting Cutout: Ø22.5mm (23mm per RS Components; some sources list 22mm standard)
• Front Dimensions: 29.7mm (head diameter)
• Panel Depth with contact block: 45.3mm
• Rotation Angle: 40° per position
• IP Rating: IP66 (front panel); series supports IP67 and IP69K with appropriate accessories
• Operating Temperature: -25°C to +70°C
• Actuator Color: Black
• Default Inscription: O-I (0-1)
• Weight: 14.82g (head only); 0.013kg per UK source
• Mechanical Life: >5,000,000 operations (Kent Store); 1,000,000 operations per RS Components
• Electrical Life: 1,600,000 operations at 230V/0.5A
• Contact Rating: A600/P300 — 10A at 600VAC, 1A at 250VDC
• Certifications: CE, GoST-R, UL, CSA, IEC/EN 60947, VDE 0660, RoHS, CCC
• SmartWire-DT: Compatible with SWD-RMQ connections
• Origin: Germany
• EAN: 4015082168551
• UPC: 786685281629

5. Ordering & Compatibility

The M22-WR actuator head is sold standalone (actuator only). To build a functional switch, contact blocks must be ordered separately: M22-K10 (1NO front), M22-K01 (1NC front), M22-KC10/KC01 (rear-fixing), M22-K11, M22-K20, M22-K02, M22-K21, M22-K12. Up to 6 contact blocks on two levels can be added. The M22-A adapter enables front-fixing of contact blocks and LEDs. Maintained/spring-return function can be swapped using M22-XC-Y coding pieces. Common bundles: M22-WR+M22-A (78635849) and variant-specific M22-WR-X91+M22-A (70011292), M22-WR-X92+M22-A (70011293). Typical pricing: US $17–$24/ea (DigiKey $23.90 qty 1), €13.53 (Tandmore DE), £10.73 (iLECSYS UK), 49.77 PLN (Polish shop), SR 113 (RS Saudi Arabia), NT$860 (DigiKey Taiwan), ¥193.76 RMB (M22-WR+M22-A bundle, iCEasy China), 487 ₴ UAH (Ukraine), 296 Kč (Czech viola.cz). Packaging is typically 5 pcs per carton from manufacturer.

6. Known Issues

The most consistently noted issue is that contact blocks are not included with the M22-WR actuator head, requiring a separate order — this is a modular design choice but can catch purchasers off guard. Some sources (RS Components) report the mechanical life at 1,000,000 operations while Kent Store/Eaton documentation claims >5,000,000 mechanical life; the discrepancy may reflect different test conditions or sources. No field reliability issues, failure modes, or product recalls were found across the surveyed findings.