It is an extended black rotary handle for Compact INS250_100 to 250 and Compact INV100 to 250 switch disconnectors.It is suitable for isolation and it is used for standard applications.This rotary handle is a front control accessory.This extended version makes possible to operate devices installed at back of switchboards, from the switchboard front.The degrees of protection are IP55 and IK08.It may be locked in the OFF position by one to three padlocks, hasp diameter 5 to 8 mm (not supplied).