... ,20(80)A,30(100)A DT862 three phase KWH meter:1.Model:DT8622.Standard: IEC521-19883.Function:measurement the active ... .Rated frequency:50Hz8.Bearing:Dual jewel,magnetic thrust,magnetic floating9.Case:Aluminum,plastic,glass,bakelite,PC,ABS plastic10.Register:5+1 ... :ISO9001:2000, ISO14001:1996,CE DT862 three-phase watt-hour meter