... &FCC, IEC III rank 4.Customizable,OEM&ODM Introduction1.Specification 3-phase Measure voltage current, active power, reactive power, power ... Directly connect to IO terminals AC input 3-Meter or 2-Meter 3 PT& CT or 2 PT & CT Voltage 400V or 120V Current ... : Voltage, current, active power, reactive Power of each phase, 3 Phase Power, 3 Phase reactive Power, Power Factor, Frequency and etc.. Voltage ...