... voltages, line voltages, current, active, reactive and apparent power, power factor etc..; 2, 4-quadrant energies, including active ... DC 30V/3A)AccuracyFrequency 0.01Hz, reactive energy 1 class, others 0.5 classDisplayLCDPower supplyAC/DC 85~270V; consumation ... : ≤4VAIsolationPower / current input / voltage input: AC2kV/1min; Power / logic inputs / RS485: AC1.5kV/1min; Inputs / outputs / ...