... are mainly used in the circuit of AC 50Hz, rated voltage 220V/380V, and acted to install the modular combination ... equipment. It is widely used in the family, high building, house, station, port, airport, commercial house, hospital, cinema ... communication and joint box etc.Enjoy more details:Other Ranges: High Voltage Electricity Distribution Box for ELCB/MCB/RCCB Circuit Breaker V ...