1SFA611201R2103 ABB M2SS2-21Y 2-Position Illuminated Maintained Selector Switch

Why Choose the ABB M2SS2-21Y Selector Switch?

The ABB M2SS2-21Y is a two-position illuminated selector switch operator from ABB's modular plastic pilot-device range, designed for industrial machinery, control panels and operator stations. It combines a compact short rotary handle with a maintained switching action for reliable two-state command and selection functions.

The M2SS2-21Y features a yellow short handle, yellow illumination and a chrome plastic bezel. Its A/C operating configuration provides two maintained selector positions, allowing the chosen operating state to remain selected after the handle is released.

Designed for ABB's 22 mm modular pilot-device system, the M2SS2-21Y provides IP66 front protection and a NEMA 4X front protection classification. The operator is supplied without a contact block, allowing compatible ABB modular switching components to be selected for the required control circuit. ABB order code 1SFA611201R2103 identifies this exact M2SS2-21Y Selector Switch.

Key Advantages

• Two maintained selector positions provide positive selection between two control states.
• A/C operating configuration provides the defined selector action for this M2SS2 variant.
• Yellow illuminated short handle combines rotary control with clear visual indication.
• Chrome plastic bezel provides a clean, coordinated industrial control-panel appearance.
• 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 panel integration.
• ABB modular construction allows the required contact blocks and illumination components to be configured separately.

Key Features

• ABB M2SS2 modular selector switch operator.
• Two-position selector.
• Maintained / latching operation.
• A/C selector configuration.
• Yellow short rotary handle.
• Yellow indicator illumination.
• Chrome plastic bezel.
• Suitable for illumination.
• 22 mm mounting hole.
• IP66 front protection rating.
• NEMA 4X front protection classification.
• Supplied without a contact block.
• Net weight approximately 0.015 kg.
• ABB order code 1SFA611201R2103.

Maintained Rotary Selection with Yellow Visual Indication

Maintained selector switches are suited to control functions where an operator needs to select a machine or process state that remains active after the handle is released. The ABB M2SS2-21Y provides two stable positions with an A/C operating configuration, making it suitable for operating-mode selection, circuit selection and other two-state industrial commands.

The yellow illuminated short handle provides clear visual identification, while the chrome plastic bezel gives the operator 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, providing flexibility for machine builders and panel builders.

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.