It is an extended red rotary handle on yellow front for Compact INS320/400/630, Compact INV320/400/630 and Compact NSJ400 devices. It is suitable for isolation and it is used for standard applications. This rotary handle is a front control accessory, for machine-tool control emergency-off application. Rotary handles are designed to offer easy operation, yet high performance in interruption of currents. 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).