... IEC III rank 4.Customizable,OEM&ODM Introduction1.Specification 3-phase Measure voltage current, active power, reactive power, power ... Counter Frequency Digit relay Output 3 Channel Relay Output One Form C (SPDT) 250V/3A AC Contact Capacity Relay Contacts Directly connect ... , current, active power, reactive Power of each phase, 3 Phase Power, 3 Phase reactive Power, Power Factor, Frequency and etc.. ...