Why Choose the ABB M3SS2-21R Selector Switch?
The ABB M3SS2-21R is a robust 3-position illuminated selector switch designed for momentary operator control and visual signalling in industrial machinery, electrical control panels and automation systems. Part of ABB's Modular Plastic pilot device range, it features a red short rotary handle with a chrome plastic bezel for a compact and professional operator interface.
The M3SS2-21R uses a momentary, spring-return operating principle, providing three selector positions while automatically returning the actuator after a temporary command. This makes it particularly suitable for machinery and process-control functions where an operator needs to issue directional or temporary commands rather than leave the selector permanently latched.
Designed for standard 22 mm pilot-device mounting, the M3SS2-21R provides IP66 front protection and NEMA 4X protection for demanding industrial environments. Its modular construction allows compatible ABB contact and illumination components to be selected separately according to the required control circuit.
Key Advantages
- Industrial 3-position illuminated selector switch for machinery and automation control.
- Momentary spring-return operation is ideal for temporary machine commands.
- Highly visible red short rotary handle.
- Professional chrome plastic bezel for industrial control panels.
- Standard 22 mm mounting format simplifies panel integration.
- IP66 front protection and NEMA 4X protection support demanding operating environments.
Key Features
- ABB Modular Plastic pilot device range.
- 3-position selector switch.
- Momentary switching action.
- Spring-return operation.
- Short rotary handle.
- Red illuminated operator.
- Chrome plastic bezel.
- Suitable for illumination.
- IP66 front protection.
- NEMA 4X protection.
- Supplied without contact block for modular configuration.
Reliable Momentary Three-Position Control for Industrial Machinery
Three-position momentary selector switches are useful where an operator needs to issue temporary directional, positioning or function commands without leaving the control permanently selected. The ABB M3SS2-21R combines three-position rotary selection with spring-return action, making it well suited to industrial control functions requiring deliberate temporary input.
The red operator is suitable for illumination to provide additional visual signalling, while ABB's modular pilot-device architecture allows compatible contact blocks and illumination components to be configured according to the control-circuit requirements. This makes the M3SS2-21R suitable for new machinery, OEM control panels and compatible ABB pilot-device installations.
Typical Applications
- Industrial machinery control panels.
- Momentary directional control functions.
- Machine positioning and jogging commands.
- Factory automation systems.
- Process control equipment.
- Production and assembly machinery.
- Conveying and material handling systems.
- OEM electrical and automation panels.
