Product Description
Eaton Moeller M22-WRK3 — 22mm RMQ-Titan 3-Position Maintained Selector Switch
The Eaton Moeller M22-WRK3 is a 22mm, 3-position maintained rotary selector switch from the RMQ-Titan M22 series. It features a thumb-grip knob with silver (titanium) bezel, IP66/NEMA 4X protection, and ±45° rotation between Left, Center, and Right positions. The M22-WRK3 is an actuator only — no contacts are included. Contacts are added using M22-K series contact blocks (up to 6 blocks via M22-A mounting adapter). For a 2-position version, see the M22-WRK. For 3-position momentary (spring return to center), see the M22-WK3.
No contacts included — assembly required
The M22-WRK3 is the operator actuator only. To complete a functional switch, add M22-K contact blocks from the dropdown above. A M22-A mounting adapter is required to attach the contact blocks to the operator. Select contact blocks at checkout, or order the M22-A adapter and M22-K blocks separately.
Quick Specifications
- Part Number: M22-WRK3
- Series: Eaton Moeller RMQ-Titan M22
- Type: Rotary selector switch operator (actuator only)
- Positions: 3 (Left / Center / Right), maintained
- Actuator: Thumb-grip knob
- Bezel: Silver (titanium finish)
- Rotation: ±45° (−45° Left / 0° Center / +45° Right)
- Panel Cutout: 22mm notched hole
- Illumination: Non-illuminated
- Contacts Included: None — M22-K contact blocks required
- Max Contact Blocks: Up to 6 (via M22-A adapter)
- Contact Rating: A600/P300 — 10A @ 600V AC / 1A @ 250V DC (pilot duty)
- Protection: IP66 / NEMA 4X, 13
- Mechanical Life: >5 million operations
- Electrical Life: 1.6 million operations (@ 230V AC / 0.5A)
- SmartWire-DT: Compatible (with SWD-RMQ connection)
- Certifications: UL, CSA, IEC/EN 60947-5-1, VDE, CE, GL, DNV
M22-K Contact Block Options
Select the contact block configuration needed for your application. Each M22-K block connects to the M22-WRK3 via the M22-A adapter. All blocks carry the A600/P300 pilot duty rating (10A @ 600V AC).
| Part Number | Contact Configuration | Common Use |
|---|---|---|
| M22-K10 | 1 NO (Normally Open) | Single circuit enable per position |
| M22-K01 | 1 NC (Normally Closed) | Safety interlock, inhibit circuit |
| M22-K11 | 1 NO + 1 NC | Most common — enable + interlock |
| M22-K20 | 2 NO | Dual-circuit enable, forward/reverse |
| M22-K02 | 2 NC | Dual inhibit/safety circuit |
| M22-K21 | 2 NO + 1 NC | Dual enable with interlock |
| M22-K12 | 1 NO + 2 NC | Single enable with dual interlock |
M22 Series Selector Switch Comparison
| Model | Positions | Action | Actuator |
|---|---|---|---|
| M22-WRK | 2 | Maintained | Thumb-grip knob, silver bezel |
| M22-WRK3 (this item) | 3 | Maintained | Thumb-grip knob, silver bezel |
| M22-WK3 | 3 | Momentary (spring return to center) | Lever/knob, silver bezel |
| M22-WKV | 2 | Key-operated | Key, silver bezel |
Product Features
- 3-Position Maintained — Stay-Put Operation: The M22-WRK3 holds its selected position (Left, Center, or Right) without spring return. Once rotated to a position, the switch stays there until manually moved. This is the correct choice for applications such as Hand/Off/Auto (HOA) motor control, Speed 1/Off/Speed 2 selection, or Local/Remote switching where the position must be retained when the operator walks away.
- No Contacts Included — Modular Assembly: The M22-WRK3 is the operator head only. Contacts are added using M22-K series contact blocks which snap onto the rear of the M22-A mounting adapter. This modular design means you buy only the contact configuration you need, and contact blocks can be changed in the field without replacing the operator. Up to 6 contact blocks can be stacked on a single M22-WRK3.
- Center Position Coding — M22-XC-Y: By default, a 3-position selector switch actuates contacts symmetrically. The center position can be customized using optional M22-XC-Y coding parts, which change whether contacts are active or inactive in the center position. This allows the same switch to serve as Off-On-On, On-Off-On, or other logic arrangements without changing the contact blocks.
- IP66 / NEMA 4X Protection: The M22-WRK3 is rated IP66 (dust-tight, protected against powerful water jets) and NEMA 4X (corrosion-resistant). This makes it suitable for washdown environments, outdoor enclosures, and corrosive industrial atmospheres where lower-rated switches would fail.
- SmartWire-DT Compatible: The M22-WRK3 is compatible with Eaton’s SmartWire-DT wiring system (with the SWD-RMQ connection module), allowing integration into smart panel architectures that eliminate individual point-to-point wiring between operator devices and the PLC.
- 5 Million Mechanical Operations: The RMQ-Titan M22 series is rated for over 5 million mechanical switching cycles, equivalent to one cycle per minute for more than 9.5 years of continuous operation. Contact blocks carry 1.6 million electrical operations at 230V AC / 0.5A, with A600/P300 pilot duty ratings (10A @ 600V AC).
- 22mm Notched Panel Cutout: Mounts in a standard 22mm notched hole. The notch prevents rotation after installation — a significant advantage over round-hole operators that can rotate loose over time, particularly in high-vibration environments.
In Stock at Kent Electrical Supply — Emmaus, PA — Same-Day Shipping on Orders Before 4:00 PM EST.
Frequently Asked Questions
Does the M22-WRK3 include contacts?
No — the M22-WRK3 is the operator actuator only and does not include any electrical contacts. To make a complete, functional switch, you need to add M22-K contact blocks (available in the dropdown above) and a M22-A mounting adapter. The M22-A adapter is the mechanical interface between the operator and the contact blocks. Contact block options include M22-K10 (1 NO), M22-K01 (1 NC), M22-K11 (1 NO + 1 NC), M22-K20 (2 NO), and others — select the configuration matching your control circuit requirements.
What is the difference between the M22-WRK3 and the M22-WK3?
Both are 3-position, 22mm selector switches with silver bezels, but the key difference is the return action. The M22-WRK3 is maintained (stay-put) — it holds whatever position it is turned to. The M22-WK3 is momentary (spring return to center) — it springs back to the center position when released. Use the M22-WRK3 for Hand/Off/Auto or persistent mode selection. Use the M22-WK3 for Jog/Off/Jog or pulse-type control where the position should return to neutral.
How many contact blocks can I add to the M22-WRK3?
Up to 6 M22-K contact blocks can be added to the M22-WRK3 via the M22-A mounting adapter. Each contact block clips onto the stack behind the adapter. The maximum stack depth is limited to 6 blocks to maintain structural integrity and prevent excessive panel projection. Call Kent Electrical Supply at 1-800-222-5129 if you need guidance on configuring a multi-block stack for a specific application.
What panel cutout does the M22-WRK3 require?
The M22-WRK3 mounts in a standard 22mm notched hole. The notch (keyway) in the panel cutout prevents the operator from rotating after installation — a built-in anti-rotation feature. Standard 22mm knockout punches produce the correct notched hole. Do not use a plain round 22mm hole without the notch, as the operator may rotate during use.
What contact rating do the M22-K contact blocks carry?
All M22-K contact blocks are rated A600/P300 (Pilot Duty): 10A @ 600V AC (resistive) and 1A @ 250V DC. This covers virtually all standard control circuit voltages including 120V AC, 240V AC, and 24V DC PLC I/O applications. The contact blocks have an electrical life of 1.6 million operations at 230V AC / 0.5A, and a mechanical life exceeding 5 million operations.
Does the M22-WRK3 qualify for same-day shipping?
Yes — the M22-WRK3 is in stock at Kent Electrical Supply’s warehouse in Emmaus, PA and ships same business day when ordered before 4:00 PM EST. M22-K contact blocks, the M22-A adapter, and related M22 accessories are also stocked. Call 1-800-222-5129 or text your RFQ to 484-425-0652 for bulk pricing or application assistance.
