Why Choose the ABB M3SS7-20B Selector Switch?
The ABB M3SS7-20B is a robust three-position selector switch designed for industrial control panels, machinery and automation systems. Part of the ABB modular pilot devices range, it provides a dependable operator interface for selecting machine functions and issuing manual control commands.
This selector switch features a black short rotary handle, three A-B-C operating positions and a chrome-plastic front bezel. Its maintained/momentary operating arrangement has positions B and C maintained, with spring return from A to B, making it suitable for applications that require both retained and temporary operator commands.
Designed for standard 22 mm panel mounting, the M3SS7-20B is a non-illuminated selector operator with IP66 front protection and NEMA Type 4X protection. It is supplied without a contact block, allowing compatible ABB modular contact blocks to be selected according to the required electrical control function.
Key Advantages
- Industrial three-position selector switch for machinery and automation applications.
- Black short rotary handle provides clear and convenient manual operation.
- B and C positions are maintained, with spring return from A to B.
- Standard 22 mm panel mounting simplifies installation in industrial control panels.
- IP66 front protection and NEMA Type 4X protection support demanding industrial environments.
- Modular ABB construction allows compatible contact blocks to be selected for the required control circuit.
Key Features
- ABB M3SS7 modular selector switch.
- Three-position A-B-C operation.
- Maintained/momentary operating function.
- B and C maintained.
- Spring return from A to B.
- Black short rotary handle.
- Chrome-plastic front bezel.
- Non-illuminated design.
- 22 mm panel mounting.
- IP66 front protection.
Reliable Operator Control for Industrial Machinery
Three-position selector switches provide operators with a straightforward method of choosing between different machine commands or operating states. The ABB M3SS7-20B combines maintained B and C positions with a momentary A position that automatically returns to B when released, providing both retained and temporary control functions from a single compact operator.
The ABB modular pilot-device platform allows the selector operator to be combined with compatible contact blocks according to the required electrical control circuit. Its standard 22 mm mounting format, rugged front protection and compact short-handle design make it well suited to industrial control panels, operator stations and machine interfaces.
Typical Applications
- Industrial machinery control panels.
- Operator control stations and consoles.
- Machine mode and function selection.
- Directional and process control circuits.
- Production and manufacturing equipment.
- Material handling and conveyor systems.
- OEM machinery and electrical control assemblies.
