... protocol ModelDescriptionNote YD2060JThree-phase voltage, frequency in one circuit, each phase current,power, power factor, energy in three circuits. YD2060-J2Three-phase voltage, frequency in one ... -JKThree-phase voltage, frequency in one circuit, each phase current,power, power factor, energy in three circuits.With split-type transformerYD2060-J2KThree-phase voltage, frequency in ...