... RS-485 communication Modbus-RTU treaty.Support DI DO AOAuxiliary Power Supply :AC/DC 80V-270V, AC220V,AC380V,AC100V,DC48V,DC24VVarious shape ... ,three-phase four-wire ,three-phase three-wireRated voltageAC57.7V ,AC 100V,AC220V,AC380VRated currentAC1A ,AC5AOverloadVoltage:1.2 times 2 times ... 96*48 single phase lcd digital display reactive rs485 electric power meter RH-Q5Y