ABB, Key Release, Emergency Stop Push Button Head 30 mm Diameter

ABB Emergency Stop Push Button Head, 30mm Push Button Diameter, 22.5mm Cut-out Diameter - 1SFA611522R1201

This emergency stop push button head provides a manual means to interrupt machinery power where Rapid operator intervention is required. Designed for panel mounting, it offers a ProMinent red mushroom actuator for quick access and deliberate activation in industrial control panels and equipment.

Features and Benefits:

• Key release actuation prevents accidental reset and unauthorised restart
  Plastic mushroom actuator improves grip and Rapid manual handling
  Red colour enhances Visual identification in safety circuits
  Compatible with 22.5mm panel cutouts for standard mounting
  Dual IP ratings provide sealed external protection and internal enclosure flexibility

Applications

• Suitable for emergency shutdowns on factory automation panels
  Ideal for installation on control stations in electrical distribution boards
  Used with machine guards in mechanical fabrication environments
  Can be used for safety interfaces in electronics assembly lines

What mounting aperture is required for installation?

It fits a 22.5mm panel cutout, allowing retrofit into common control enclosures.

How does the actuator behave in dusty or wet environments?

The head carries IP66 protection externally for dust‑tight and powerful water jets, while IP20 applies to internal enclosure conditions.

Is the actuator illuminated for low‑light situations?

No illumination is provided
the design relies on its red colour and mushroom form for visibility.

What release method is used to reset the actuator after operation?

A key‑operated release mechanism is required to reset the actuator and permit restart.

What material is the actuator MADE from and how does that affect handling?

The button is formed from plastic, offering a lightweight surface that permits secure manual operation without conductive risk.