... +DI Model Descriptions for FunctionsNoteYD2080Three-phase voltage, frequency in one circuit, each phase current, power, power factor, energy in three circuits ... .With split-type transformerYD2080-4KThree-phase voltage, frequency in one circuit, each phase current, power, power factor, energy in four circuits ... supplyAC85~265V/DC85~330V(optional) power consumption ≤5VA or ≤2W multi-channels power meter