... watt meter 3,Low energy consumption 4,CE,ISO14001,9001 5.OEM General IntroductionThree Phrase Prepaid ... power quantity and other information.Technique Specifications ItemPrepaid Three-phase Energy MeterAccuracy Class1.0Voltage3×220/380 ... EquipmentThe WorkshopModelDSSY---Three-phase three line, outside switchDTSY---Three-phase four line, outside switchDSSYK-Y---Three-phase three line, inside ...