Why Choose the ABB M2SS2-21R Selector Switch?
The ABB M2SS2-21R, ABB order code 1SFA611201R2101, is a modular two-position illuminated selector switch operator designed for industrial machinery, automation systems and operator control panels. Part of ABB's modular plastic Pilot Devices range, it combines maintained selector operation with a red short-handle actuator for clear manual control and visual indication.
The M2SS2-21R features a red short rotary handle with a matching red illuminated lens and an A–C operating principle. Its maintained, or latching, action allows the selector to remain in the chosen position after the operator releases the handle, making it suitable for machine modes, process functions and other applications requiring a persistent two-state selection.
Designed for standard 22 mm industrial pilot-device mounting, the M2SS2-21R provides IP66 front protection and a NEMA 4X rating when correctly installed. Its chrome-effect plastic bezel and modular construction allow compatible ABB contact blocks and illumination components to be selected according to the required electrical switching and signalling functions.
Key Advantages
- Compact two-position illuminated selector switch operator for industrial control applications.
- Red short-handle actuator and red lens provide clear visual identification.
- Maintained / latching operation keeps the selected position until manually changed.
- A–C operating principle provides straightforward two-state selection.
- IP66 and NEMA 4X front protection supports demanding industrial environments.
- Modular ABB construction allows compatible switching and illumination components to be configured for the application.
Key Features
- ABB M2SS2-21R selector switch.
- Two-position selector configuration.
- Maintained / latching operating action.
- A–C selector operating principle.
- Short rotary handle.
- Red actuator colour.
- Red illuminated lens.
- Chrome-effect plastic bezel.
- Designed for 22 mm pilot-device mounting.
- IP66 front protection rating.
- NEMA 4X front protection rating.
- 0.5 million operations mechanical durability.
Maintained Selection and Visual Indication for Industrial Machinery
Maintained selector switches provide operators with a straightforward method of choosing between machine modes, process functions or operating states that need to remain selected. The ABB M2SS2-21R remains in its selected position after the short handle is released, making it suitable for applications where a persistent two-state selection is required.
The M2SS2-21R combines an A–C operating principle with a red illuminated short handle and chrome-effect plastic bezel. As part of ABB's modular pilot-device system, compatible contact blocks and illumination components can be selected to create a control arrangement suited to industrial machinery, control panels and automation equipment.
Typical Applications
- Industrial machinery mode selection.
- Operator stations and control consoles.
- Manufacturing and production equipment.
- Manual and automatic mode selection circuits.
- Conveyor and material handling systems.
- Process control and automation equipment.
- OEM machinery requiring illuminated maintained selector control.
