... Power Meter Measure active power, reactive power, voltage, current and frequency RS-485 CE Integrated active power and reactive power meter1.Applied in power networks and power ... of the voltage, current, active power, reactive power, power factor and frequency;3.Three relay ... ,DC5A/30V resistiveWithstand VoltagePower Supply & Input >2kV; Power Supply & Output >2kV; Output & Input >2kVInsulation ...