It is suitable for the three phase three wire, three phase four wire and three phase five wire system with 50 Hz, 500 V and below, and the load current not more than 630 A. It can control the distribution system, protect the leakage current, and protect the motor from overload, short circuit and lack of phase. The box is reasonable in design, small in size, beautiful in appearance, safe and reliable in use. Widely used in governance, petrochemical, medical and health, aviation, residential communities, shopping malls, schools, urban transformation and other industries.
