... phase current, power, power factor, energy in three circuits, with 3DI+1DO.With split-type transformerYD2080-2KThree-phase voltage, frequency in one ... phase current, power, power factor, energy in four circuits, with 3DI+1DO.With split-type transformer Electrical Characteristics Measuring Accuracy Type of ... supplyAC85~265V/DC85~330V(optional) power consumption ≤5VA or ≤2W multi-channels power meter