1SFA611200R3108 ABB M2SS1-31C 2-Position Illuminated Maintained Selector Switch

Why Choose the ABB M2SS1-31C Selector Switch?

The ABB M2SS1-31C is a two-position illuminated maintained selector switch operator designed for industrial machinery, control panels and operator stations. Part of ABB's modular 22 mm pilot-device range, it provides positive rotary selection with a compact short-handle actuator and a robust chrome metal bezel.

The M2SS1-31C features a clear illuminated short handle and B/C maintained operating principle. Its two stable selector positions remain selected after the operator releases the handle, making the device suitable for applications where a machine, circuit or process state must remain active until deliberately changed.

Designed for a nominal 22 mm panel mounting hole, the M2SS1-31C provides IP66 front protection and NEMA 4X protection at the operator interface. The selector is supplied without a contact block, allowing compatible ABB modular contact and illumination components to be selected for the required circuit. ABB order code 1SFA611200R3108 identifies this exact M2SS1-31C Selector Switch.

Key Advantages

• Two maintained selector positions provide positive selection between two control states.
• Clear illuminated short handle supports visual status indication.
• B/C maintained operating principle retains the selected position until manually changed.
• Chrome metal bezel provides a robust industrial operator interface.
• IP66 front protection supports installation in demanding industrial environments.
• NEMA 4X front protection provides additional environmental protection classification.
• Standard 22 mm mounting format supports straightforward integration into industrial control panels.
• Modular ABB construction allows contact and illumination components to be selected separately for the application.

Key Features

• ABB M2SS1 modular selector switch operator.
• Two-position selector.
• Maintained / latching operation.
• B/C operating configuration.
• Clear short rotary handle.
• Illuminated operator design.
• Chrome metal front bezel.
• 22 mm mounting hole.
• IP66 front protection rating.
• NEMA 4X front protection classification.
• Supplied without a contact block.
• ABB order code 1SFA611200R3108.

Maintained Rotary Selection with Clear Illumination

Maintained selector switches are used when an operator needs to select a machine or process state that remains active after the handle is released. The ABB M2SS1-31C provides two stable B/C positions through a compact short rotary handle, making it suitable for operating-mode selection, circuit selection and other two-state industrial control functions.

The clear illuminated actuator adds visual signalling capability, while the chrome metal bezel provides a durable operator interface for industrial control panels. ABB's modular pilot-device architecture allows compatible contact blocks and illumination components to be selected according to the electrical requirements of the application, providing flexibility for machine builders, panel builders and automation engineers.

Typical Applications

• Industrial machinery mode selection.
• Machine control panels and operator stations.
• Manufacturing and production equipment.
• Conveyor and material handling systems.
• Process control and automation equipment.
• Control desks and local operator interfaces.
• OEM machinery and machine-building applications.