... Meter:DD862 single-phase watt-hour meter is induction meter, which is applicable to measure the rated frequency 50Hz and power loss ... novel design, rational structure and features of high overload, low power loss and long life etc. All technical largets are completely ... /6A, 2.5/10A, 5/20A, 3/12A, 10/40A, 15/60A, 20/80A, 30/100A. DD862 Single-Phase Active Energy Watt ...