General
Degree of protection	IP66
Construction type	key operation, latching
Positions	3
Front ring	Titanium
Connections	RMQ-SWD
Scope of delivery	2 keys
Standards	IEC/EN 60947, VDE 0660
Assortment	RMQ-Titan
Device type	Single device
Connection to SmartWire-DT
Suitable for access control systems

The M22-WRS3-SA(*)-* key switch from Eaton belongs to the RMQ-Titan product series and is designed as a single unit for industrial control and switching applications. It features a latching key operation with three positions and is suitable for use in locking systems. The front dimension is 29.7 mm, with the front ring made of titanium. The IP66 protection rating ensures a high mechanical and electrical protection class, making the device suitable for use even under harsh operating conditions outdoors or in humid environments. Connection to the SmartWire-DT system is possible, with integrated RMQ-SWD connections. The device is supplied with two keys.

Applications

The key switch is intended for use in industrial control and switching systems, particularly in environments where secure, latching operation with key access is required. The locking system capability allows use in installations requiring controlled access to specific functions, for example in manufacturing automation, machine control, or building automation. The IP66 protection rating also makes it suitable for outdoor areas or humid production environments.

Functions and Equipment in Detail

The key switch features three latching positions operated via a key. The latching design ensures that the position is held securely without requiring the key to remain inserted continuously. The integrated RMQ-SWD connections enable connection to the SmartWire-DT system, an industrial fieldbus system for decentralized control. The front dimension of 29.7 mm allows for compact mounting in standard socket or control panels. The device is delivered with two keys, which are required for operation.

Technology Explained Simply

The IP66 protection rating means the device is dust-tight and protected against water jets from any angle. This makes it suitable for use in humid, dusty, or outdoor installations. The titanium front ring offers high corrosion resistance and mechanical strength. Connection to SmartWire-DT enables decentralized control via a fieldbus system, reducing cabling and simplifying system integration. The three positions can be configured according to application needs as On", "Off", and "Intermediate" or as "Manual", "Automatic", and "Stop.

Compatibility and Accessories

The device can be combined with various accessories that extend its functionality. These include contact elements such as the M22-K01D (1S1Ö front) or M22-KC10 (1S bottom), which are required for electrical switching functions. Pushbutton accessories such as the M22S-ST-GB7 (label holder RUN) or M22S-ST-GB12 (label holder MAN 0 AUTO) allow labeled identification of positions. Additional components such as the M22-XADC (accessory for dust cover) or M22-E5 (mounting plate) support installation and protection. The use of mounting enclosures such as the M22-I1 or M22-I3 is also possible to integrate the device into existing control panels.

Mounting and Installation

Mounting is carried out in standard socket or control panels with a front dimension of 29.7 mm. Mounting plates such as the M22-E5 or M22-EY1 facilitate installation. Electrical connection is made via the integrated RMQ-SWD connections, designed for SmartWire-DT connection. Mechanical mounting requires no additional tools, with detailed mounting instructions included with the respective accessories. The keys are included in the delivery and must be used for commissioning.

Operational Advantages

The latching key operation ensures a secure and clearly visible position indication, which remains stable even under mechanical stress. The IP66 protection rating increases reliability in harsh environments. Integration into SmartWire-DT systems reduces cabling and enables flexible system control. The use of titanium for the front ring ensures long service life and high corrosion resistance. Compatibility with various accessories allows customized adaptation to specific requirements.

The standards IEC/EN 60947 and VDE 0660 guarantee compliance with international safety and functional requirements for control devices in electrical installations.