Why Choose the ABB M3SS2-21L Selector Switch?
The ABB M3SS2-21L is a three-position momentary illuminated selector switch designed for industrial control panels, machinery and automation systems. Part of ABB's modular 22 mm pilot device range, it features a blue short-handle rotary actuator with a chrome-plastic bezel for clear manual control and visual indication.
The M3SS2-21L provides three selector positions with spring return from A and C to the centre B position. This momentary operating principle automatically returns the actuator to B when released from either outer position, making it well suited to temporary directional, adjustment and machine-command functions.
Designed for standard 22 mm panel mounting, the M3SS2-21L is an illuminated modular operator supplied without a contact block. Its modular construction allows compatible ABB contact and illumination components to be selected according to the required electrical control and indication function.
Key Advantages
- Three-position momentary selector switch for industrial command functions.
- Spring return from A and C to centre position B provides automatic return after operation.
- Blue illuminated short-handle actuator combines manual control with visual indication.
- Chrome-plastic bezel provides a clean and durable operator interface.
- Standard 22 mm panel mounting simplifies integration into industrial control stations.
- Modular ABB construction allows compatible contact and illumination components to be selected for the application.
- Compact operator design is suitable for machinery, process and OEM automation panels.
Key Features
- ABB M3SS2 modular selector switch series.
- Three-position momentary operation.
- Spring return from A to B and from C to B.
- Short-handle rotary actuator.
- Blue actuator colour.
- Illuminated selector switch design.
- Chrome-plastic bezel.
- Supplied with no contact block.
- 22 mm modular pilot-device format.
- Individual operator weight of 0.015 kg.
Reliable Momentary Control for Industrial Machinery
Three-position momentary selector switches provide operators with temporary commands in either direction while automatically returning to a defined centre position. The ABB M3SS2-21L returns from both outer positions A and C to centre position B when released, making it suitable for functions where a control command should remain active only while deliberately selected.
The M3SS2-21L forms part of ABB's modular pilot-device system, allowing machine builders and panel designers to configure the illuminated operator with compatible control and illumination components. Its blue short-handle actuator, chrome-plastic bezel and standard 22 mm format provide a compact operator interface for industrial machinery and automation equipment.
Typical Applications
- Industrial machinery control panels.
- Forward / centre / reverse command functions.
- Raise / neutral / lower control functions.
- Jogging and temporary machine commands.
- Manufacturing and production equipment.
- Material handling and conveyor systems.
- OEM machinery and industrial automation systems.
