Why Choose the ABB M3SS7-20R Selector Switch?
The ABB M3SS7-20R is a robust three-position selector switch designed for industrial machinery, control panels 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 red 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 requiring a combination of retained and temporary control commands.
Designed for standard 22 mm panel mounting, the M3SS7-20R provides IP66 front protection and NEMA Type 4X protection when correctly installed. The operator is non-illuminated and supplied without a contact block, allowing compatible ABB modular contact blocks to be selected to suit the required control circuit.
Key Advantages
- Industrial three-position selector switch for machinery and automation applications.
- Red short rotary handle provides clear identification 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 operating environments.
- Modular ABB construction enables compatible contact blocks to be selected for the required control function.
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.
- Red 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 selecting between different machine commands or operating states. The ABB M3SS7-20R combines maintained B and C positions with a momentary A position that automatically returns to B when released, providing both retained and temporary control 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, IP66 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.
