BYEM series MCCB is one of the new circuit breakers designed and developed by our company with advanced technology. Its rated insulation voltage can reach 1000V, suitable for infrequent conversion and infrequent starting of motor in circuits with AC 50 Hz, rated working voltage AC400 / 690V and rated working current up to 1600A. It has the functions of overload long time delay, short circuit short time delay, short circuit instantaneous and under voltage protection, which can protect the line and power equipment from damage.