... 5.IEC62053-21 Application This meter has prepaid function, for the users pay firstly, use second, This meter is best way to solve ... functions are available.Technical Parameters Accuracy classClass 1.0,Rated voltage(V)110,120,220,230,240,etc.Rated current(A ... (60), 20(80), 30(100),etc.Rated frequency50Hz or 60HzOperation voltage rangeUn±20%Starting current0.4%IbPower ConsumptionVoltage circuit ≤1W 5VA ...