Single Phase kWh Meter Executive Standard: IEC62052-11 2003; IEC62053-21 2003 Function and characteristic: Infrared function; Measurement accurately. Technical data: Rated current: 1.5(6)A 5(30)A 10(40)A 5(60)A 20(80)A Rated voltage: 110V 220V 230V 240V Display mode: LCD 6+1=999999.9kWh Accuracy class: 1.0 Frequency: 50Hz (60Hz) Impulse constant: 800/1600imp/kWh Connetion mode: CT type; Direct type. Size: 153*118*50mm.