... :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 DD862-4 is ... frequency 50HZ and power loss in electrified wire netting.the meter has novel design,rational structure and features of high overload ... (6)A,2.5(10)A,5(20)A,3(12)A,10(40)A,15(60)A,20(80)A,30(100)Aoverload capaciaty:400%lb DD862 single-phase watt-hour meter