Detailed Product Description Model No:DTSF855 (3phase 4wire)/DSSF855(3phase 3wire) Kinds: Electronic type multi-tariff kwh meter Basic current In(Imax): 1.5(6)A, 3(6)A, 5(20)A, 10(40)A, 15(60)A, 20(80)A, 30(100)ABasic voltage : 3X220/380V or 3X57.7/100V(3phase 4wire);3X100V; or 3X380V; (3phase 3wire)3X220V (3phase 3wire, specail made)Frequency:50Hz or 60Hz Accuracy:class 1 Structure ADE7752 ...