... historical fault records 10.Large screen of 128X64 dot-matrix LCD display, power saving mode11.Equipped with specific "three phases + residual" integrated ... , maximum load: 600 ohms, isolated8.Communication: RS-485, Modbus-RTU9.Power supply: 90260VAC, 50/60Hz, <5W10.Standards: IEC60947-1:2001, IEC60947 ...