... Electronic Single-phase Energy Meter,Electric Energy Meter,kWh Meter,Power Meter,Iron base, ABS cover, digital Three-phase Static Active Electronic Energy Meter,Electric Energy Meter,kWh Meter ... .4. Having the function of measuring the accumulative active energy (bi-direction ... (3P4W) will not affect normal energy measuring.Main Technical Parameters:Applicable StandardIEC61036-2000Accuracy ClassClass1 ...