1SFA611284R1004

The ABB 1SFA611284R1004 (Model M3SSK2-104) is a 3-position, key-operated modular selector switch engineered for secure, heavy-duty industrial control applications. It features momentary operation, meaning it has a spring return that automatically snaps back from position C to position B when released. The lock uses the standard Roni's 455 key code. For safety and access control, the key can only be removed when the switch is in the center “B” position. It is a non-illuminated unit and does not include a contact block out of the box. Because it is part of ABB's modular range, electrical contact blocks (Normally Open or Normally Closed) must be snapped onto the back holder separately.