abb maintained blue non-illuminated extended push button 22mm mp4-20l

Why Choose the ABB MP4-20L Maintained Pushbutton?

The ABB 1SFA611103R2004, product designation MP4-20L, is a durable maintained industrial pushbutton operator designed for controlling machinery, automation equipment and electrical systems. As part of the ABB modular plastic pilot device range, it provides clear manual control within industrial panels and operator stations.

This pushbutton features an extended blue actuator that remains in its selected position after being pressed. Its maintained operating action makes it suitable for commands that must remain active until the operator deliberately changes the button’s state.

Designed for standard 22 mm mounting openings, the MP4-20L has a chrome-effect plastic bezel and a non-illuminated actuator. It is supplied without a contact block, allowing the required compatible ABB holder and contact configuration to be selected separately for the application.

Key Advantages

• Reliable maintained pushbutton operation for persistent control commands.
• Extended actuator provides clear and convenient manual operation.
• Blue actuator supports easy function identification.
• Standard 22 mm panel mounting simplifies installation.
• Modular construction allows the contact arrangement to be selected separately.
• Chrome-effect plastic bezel provides a clean industrial appearance.

Key Features

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

Dependable Maintained Control for Industrial Panels

Maintained pushbuttons remain in their operated state after being pressed, making them suitable for control functions that must stay active without continuous pressure from the operator. A further deliberate action changes or releases the maintained command according to the assembled control arrangement.

The ABB modular pilot device system allows the MP4-20L operator to be combined with separately selected holders and contact blocks. This modular approach helps panel builders create the required switching configuration while maintaining a consistent operator interface across machinery and control equipment.

Typical Applications

• Industrial machinery control panels.
• Automation and production equipment.
• Motor and process control stations.
• Operator consoles and control desks.
• Building-services control panels.
• OEM electrical equipment and panel building.