Three Phase Din -Rail KWh Meter (DTS353-M) Executive Standard: IEC62052-11 2003; IEC62053-21 2003 DIN-rail standard: "SO"43864. Function and characteristic: Single measurement accurately. Technical data: Rated current: 3*1.5(6)A 3*10(40)A 3*20(80)A 3*10(100)A Rated voltage: 3*220/380V, 3*230/400V Display mode; Counter 6+1 = 999999.9kWh Impulse contant: 800imp/kWh 1000imp/kWh Connetion mode: CT type; Direct type; Power: Less than 2W, 10VA Normal temperature: -10~45degree Ultra temperature: -20~55degree. Size: 122*100*65mm.