... :1.5(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 ... features of justified structure,high overload,low powerloss and long service time,etc.All technical target are confirmed to National Standard ... (20),3(12),10(40),15(60),20(80),30(100). DD862,DD862 A single-phase watt-hour meter