Why Choose the ABB M3SSK3-301 Key Selector Switch?
The ABB M3SSK3-301 is a robust 3-position key-operated selector switch designed for industrial control panels, machinery and automation systems. Part of the versatile ABB Modular pilot device range, it provides key-controlled momentary operation for applications where machine or process functions require deliberate, authorised selection.
The M3SSK3-301 features momentary operation with spring return from positions A and C to the centre position B. Its black key actuator, chrome-metal bezel and non-illuminated design provide a durable operator interface suitable for demanding industrial environments. The key is removable in the centre B position only, helping maintain controlled access to the switching function.
Designed for standard 22 mm control-panel mounting, the M3SSK3-301 is supplied without a contact block, enabling compatible ABB modular contact elements to be selected according to the required control circuit. ABB identifies this exact selector switch under order code 1SFA611285R3001.
Key Advantages
- 3-position key-operated selector switch for controlled industrial switching.
- Momentary spring-return action from positions A and C to centre position B.
- Key removable in position B only for controlled operation.
- Durable chrome-metal bezel with black key actuator.
- Designed for standard 22 mm panel mounting.
- Modular construction allows suitable ABB contact blocks to be selected separately.
Key Features
- ABB M3SSK3-301 key selector switch.
- Three operating positions.
- Momentary switching function.
- Spring return from A and C to B.
- Key code 455.
- Key removable in position B only.
- Chrome-metal bezel and black key actuator.
- Non-illuminated operator design.
- Supplied without contact block.
- Designed for ABB modular 22 mm pilot device systems.
Controlled Momentary Selection for Industrial Machinery
Key-operated selector switches are well suited to control functions where access should be restricted to personnel carrying the appropriate key. The M3SSK3-301 combines this controlled access with spring-return operation, automatically returning the selector from either outer position to its centre position after the operator releases the key.
As part of ABB's modular pilot device system, the M3SSK3-301 can be incorporated into machine control panels and operator stations with compatible contact blocks selected for the required electrical function. Its modular construction simplifies configuration while providing a durable interface for industrial automation equipment.
Typical Applications
- Industrial machinery control panels.
- Key-controlled momentary machine commands.
- Machine setup and maintenance functions.
- Production and process equipment.
- Operator control stations and control desks.
- Industrial automation and OEM machinery.
