... English software IEC62053-21 1. APPLICATIONDTSY866 three phase four wire electronic prepaid energy meter,LCD display.This meter has prepaid function,for the users pay firstly ... Accuracy classClass 1.0,Rated voltage(V)3 x 57.7/100, 3 x 220/380, 3 x 230/400, 3x240/415.etc ... .Rated current(A)1.5(6), 3(6), 5(20), 10(40), 15(60), 20(80), 30 ...