CBI hydraulic magnetic type MCCB (Moulded Case Circuit Breaker). The CBI F frame series is intended for AC loads of up to 250A per phase. When connected in parallel, it can be delivered with a rated current of up to 750A for DC applications. There are plenty of accessories to the F frame, such as auxiliary switches, trip coils and various terminals.
The F frame is CE approved as per IEC/EN 60947-2.