More capacity is needed in today´s data center and the trend within both, datacom and telecom, is to shift from 48 VDC and AC systems to 380/400 VDC systems. This is to minimize energy losses and simplify system design.
 
Until now, there has not been any suitable MCBs for higher DC voltages. Now, however, CBI’s newly developed Y-Frame is available. It is based on the proven hydraulic-magnetic principle, which means that the circuit breaker is not affected by high nor low ambient temperatures. The trip point will always be maintained regardless of the ambient temperature and no de-rating is required.