1SFA611202R2101 ABB M2SS3-21R 2-Position Illuminated Momentary Selector Switch

Why Choose the ABB M2SS3-21R Selector Switch?

The ABB M2SS3-21R is a two-position illuminated momentary selector switch operator designed for industrial machinery, control panels and operator stations. Part of ABB's modular plastic pilot-device range, it combines a compact short rotary handle with spring-return operation for temporary industrial command functions.

The M2SS3-21R features a red short handle with a red indicator lens and chrome plastic bezel. Its momentary operating principle means the selector does not latch in the actuated position, making it suitable for control functions where the command should be active only while the operator deliberately actuates the selector.

Designed for ABB's 22 mm modular pilot-device system, the M2SS3-21R provides IP66 front protection and a NEMA 4X protection classification. The illuminated operator is intended for use with compatible ABB modular contact and illumination components, allowing the completed control assembly to be configured for the application. ABB order code 1SFA611202R2101 identifies this exact M2SS3-21R Selector Switch.

Key Advantages

• Two-position momentary operation provides a straightforward rotary command interface.
• Spring-return action is suited to temporary machine and process commands.
• Red illuminated short handle combines manual control with clear visual indication.
• Chrome plastic bezel provides a clean industrial control-panel appearance.
• IP66 front protection supports installation in demanding industrial environments.
• NEMA 4X protection provides an additional environmental protection classification.
• Standard 22 mm mounting format supports straightforward panel integration.
• ABB modular construction allows compatible contact and illumination components to be selected for the required circuit.

Key Features

• ABB M2SS3 modular selector switch operator.
• Two selector positions.
• Momentary / spring-return operation.
• Red short rotary handle.
• Red indicator lens.
• Suitable for illumination.
• Chrome plastic bezel.
• 22 mm mounting hole.
• IP66 front protection rating.
• NEMA 4X protection classification.
• Compact operator weight of approximately 0.015 kg.
• ABB order code 1SFA611202R2101.

Momentary Rotary Control with Red Visual Indication

Momentary selector switches are suited to industrial functions where a rotary command should not remain latched after the operator releases the handle. The ABB M2SS3-21R provides a two-position spring-return interface, making it suitable for temporary machine commands, manual control functions and other applications requiring automatic return of the selector.

The red illuminated short handle combines command and signalling functions within a compact operator, while the chrome plastic bezel provides a coordinated industrial appearance. ABB's modular pilot-device architecture allows compatible contact blocks and illumination components to be selected according to the electrical requirements of the application.

Typical Applications

• Industrial machinery momentary command functions.
• Machine control panels and operator stations.
• Manual machine-control functions.
• Manufacturing and production equipment.
• Conveyor and material handling systems.
• Process control and automation equipment.
• OEM machinery and machine-building applications.