... .5(6)A,2.5(10)A,5(20)A,3(12)A,10(40)A,15(60)A,20(80)A,30(100)A .General:DD862 single phase ... the rated frequency of 50Hzor 60Hz,and power loss of single-phase AC meshwork.The meter has the features of justified ... ),10(40),15(60),20(80),30(100). DD862,DD862 A single-phase watt-hour meter