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

ABB Emergency Stop Push Button Head, 30mm Button Diameter, 22.5mm Cut-out Diameter - 1SFA611522R1301

This emergency stop push button head provides a manual shutdown Interface for industrial control systems, designed for use where Rapid human intervention is required. It offers a non-illuminated, plastic mushroom actuator in a high-visibility red finish, configured for key release operation and intended for panel mounting in control enclosures.

Features and Benefits:

• Key release actuation prevents accidental reset while allowing deliberate restart
  IP66 protection against jetting water and dust ingress
  IP20 protection for internal, unassembled components
  30mm diameter mushroom gives rapid, unambiguous actuation
  Plastic construction reduces weight and resists corrosion
  22.5mm cut-out compatibility simplifies panel installation

Applications

• Suitable for emergency stop interfaces on production machinery
  Ideal for control panels in automated assembly lines
  Used with safety circuits requiring positive manual interruption
  Can be used for machinery where Visual emergency indication is unnecessary

Is this head suitable for use in hazardous atmospheres?

It is not certified for hazardous-area use and should not be installed where intrinsic-safety or explosion-protection certification is required.

How does key release operation affect reset procedures?

The actuator remains latched until a key is used to release it, allowing controlled reset only by authorised personnel.

What mounting provision does it require?

The unit is designed to fit a 22.5mm panel aperture for straightforward replacement or retrofit.

Does the head include illumination or lamps?

No illumination is provided
the design is a plain, non-illuminated manual actuator.

Can this be used as a replacement component in existing assemblies?

It is suitable as a replacement head for compatible emergency stop assemblies that accept 22.5mm cut-out mushroom actuators.