Why Choose the ABB M2SSK3-302 Key Selector Switch?
The ABB M2SSK3-302 is a durable 2-position maintained key-operated selector switch designed for industrial machinery, automation systems and electrical control panels. Part of the ABB modular pilot device range, it combines key-controlled operation with a black actuator and chrome-metal bezel for secure and dependable machine control.
This selector switch uses key code 421 and operates between the B and C positions, with the key removable in position B only. Its maintained switching action keeps the selected state engaged until deliberately changed, making it particularly suitable for authorised operating-mode, enable and maintenance functions.
The M2SSK3-302 is a non-illuminated operator designed for a standard 22 mm panel cut-out. It is supplied without a contact block, allowing suitable ABB modular contact blocks to be selected according to the control-circuit requirements, while its IP66 front protection supports reliable operation in demanding industrial environments.
Key Advantages
- 2-position maintained key selector switch for controlled industrial operation.
- Key code 421 for defined key-controlled access.
- Key is removable in position B only.
- Chrome-metal bezel provides a durable industrial finish.
- 22 mm mounting suits standard industrial control panels.
- IP66 front protection supports use in demanding environments.
- Modular construction allows appropriate ABB contact blocks to be selected for the application.
Key Features
- ABB M2SSK3 modular key selector switch.
- 2 operating positions.
- Maintained switching action.
- Key-operated actuator.
- Key code 421.
- Key removable in position B only.
- Black key actuator.
- Chrome-metal bezel.
- Non-illuminated design.
- 22 mm mounting-hole diameter.
- IP66 front protection.
- Supplied without a contact block.
Secure Key-Controlled Machine Selection
Key-operated selector switches provide a practical method of restricting changes to machine functions and operating modes. Requiring the correct key helps prevent unintended or unauthorised operation while still providing a straightforward operator interface for authorised personnel.
The ABB M2SSK3-302 combines key-controlled access with a maintained 2-position mechanism. Its position-B-only key removal provides a defined secured state, while ABB's modular construction allows suitable contact blocks to be selected according to the required electrical switching arrangement.
Typical Applications
- Industrial machinery control panels.
- Authorised machine operating-mode selection.
- Enable and disable control functions.
- Maintenance and service mode controls.
- Automation and production equipment.
- Motor and process control panels.
- OEM machinery and operator control stations.
