... using international advanced design and manufacturing technology. Suitable for a line of AC50Hz/60Hz, rated voltage up to 400V, ... be in adverse direction, that means power supply line must be connected to terminal 1,3 and 5 ... ,and the load line connected to terminal 2,4 and 6. The ... three phase load, the load can not have neutral line, otherwise the breaker will have fault action.3. ...