... ,15(60)A,20(80)A,30(100)A DD862-4 is the KWH meterwhich is applicable to measure ... 50HZ and power loss in electrified wire netting.the meter has novel design,rational structure and features of high ... overload,low power loss and long lifeall the goods are for NATIONAL STANDARD GB/15283-94 and INTERNATIONAL STANDARD IEC521 . ... ,20(80)A,30(100)Aoverload capaciaty:400%lb DD862 single-phase watt-hour meter