... (60)A,20(80)A,30(100)A .General:DD862 single phase induction meter is an induction meter which is applicable to ... the rated frequency of 50Hzor 60Hz,and power loss of single-phase AC meshwork.The meter has the features of justified structure ... (40),15(60),20(80),30(100). DD862,DD862 A single-phase watt-hour meter