CBM-II Series circuit breaker manager (CBM) is an integrated control relay, designed for 3KV to 35KV indoor switchgear, used for replace multiple components in LV compartment, can reduce LV panel space occupation. On it's panel it provide primary circuit simulation diagram, switch indicator, VCB status & control switch, environment control, high voltage indicator etc. Special sound prompt function can remind staff to operate the switchgear safely. It can be used in various types of switchgear such as GZS (Centrally Installed Switchgear), Handcart Cabinet, Fixed Cabinets, Ring Main Unit, etc.