abb maintained red illuminated extended push button 22mm mp4-21r

Why Choose the ABB MP4-21R Illuminated Pushbutton?

The ABB 1SFA611103R2101, product designation MP4-21R, is a durable maintained illuminated pushbutton operator designed for industrial machinery, automation panels and electrical control systems. As part of the ABB modular plastic pilot device range, it combines dependable manual operation with clear visual indication.

This pushbutton features an extended red actuator that remains in its selected position after operation. Its maintained action makes it suitable for commands that need to remain active until deliberately changed, while the illuminated design allows the operator to display equipment or control status when combined with a compatible LED block.

Designed for standard 22 mm panel mounting, the MP4-21R has a chrome-effect plastic bezel and modular construction. It is supplied without a contact block, allowing the required switching contacts, holder and illumination block to be selected separately for the application.

Key Advantages

• Reliable maintained pushbutton operation for persistent control commands.
• Illuminated actuator supports clear equipment-status indication.
• Extended red actuator provides prominent and convenient operation.
• Standard 22 mm mounting format simplifies panel installation.
• Modular construction allows the contact and illumination configuration to be customised.
• Chrome-effect plastic bezel provides a clean industrial appearance.

Key Features

• ABB modular plastic pilot device range.
• Maintained operating action.
• Extended pushbutton actuator.
• Red actuator colour.
• Designed for illuminated operation.
• Chrome-effect plastic construction.
• Designed for a 22 mm mounting opening.
• Supplied without a contact block.

Maintained Control with Clear Visual Indication

Maintained pushbuttons remain in their operated state after being pressed, making them suitable for control functions that must remain selected without continuous pressure. The illuminated actuator can also provide a clear visual indication of the associated machine condition or active command.

The ABB modular pilot device system allows the MP4-21R to be combined with separately selected holders, contact blocks and LED blocks. This flexible arrangement enables panel builders to create the required switching and illumination configuration while maintaining a consistent operator interface.

Typical Applications

• Industrial machinery control panels.
• Automation and production equipment.
• Motor and process control stations.
• Operator consoles and control desks.
• Equipment-status and warning controls.
• OEM electrical equipment and panel building.