It is an extended black rotary handle for EasyPact EZC 250 devices. It is suitable for isolation and it is used to control EasyPact device from the switchboard front face. There is an indication of the 3 Compact NSX positions O (OFF), I (ON) and tripped. It maintains circuit breaker locking capability by 1 to 3 padlocks (not supplied). The degrees of protection are IP54 and IK08.