... )A, 2.5(10), 3(12)A, 5(20), 10(40), 15(60), 20(80), 30(100) 4)ISO, CCC DDSY1777 series single phase ... prepayment watt-hour meterRated voltage:220VUltimate loadvoltage:65%-190% rated voltageCurrent Range:1.5(6), 3(6),2(8)A ... , 2.5(10), 3(12)A, 5(20), 10(40), 15(60), 20 ...