Accuracy class: Active 0,5 Reactive 1,0 Reference voltage: 3*220/380V 3*57, ... 7/100V (four-wire), Technical indexesAccuracy class: Active 0,5 Reactive 1,0Reference voltage: 3×220/380V 3×57,7 ... current: 3×1,0A, 3×5,0A ; 3×1,5(6)A, 3×3(6)A, 3×5(20)A, 3×10(40 ... rate: 300bps~9600bpsCommunication method: Direct local data exchangeCommunication Protocol: IEC1107 3P ELECTRONIC METER