... power, voltage, current and frequency RS-485 CE Integrated active power and reactive power meter1.Applied in power networks and ... power auto-control systems;2.Mainly measure the parameters of the voltage, current, active power, reactive power, power ... AC100V,220V,380V etc;Current AC1A,5A etcOverloadSustained:1.2 times;Instantaneous: Current 10 times/ 5 sFrequency40-65HzPowerSupply ...