DD862,DD862-4 single phase watt-hours meter For exported goods Application:DD862,DD862-4 50Hz,.,GB/T15283-1994IEC521.hour meter is a kind of induction ... capaciaty:200Ib 300Ib 400IbInsulation current:2kV 1,6kVAC voltage 2kV for 1 minute impulse voltage 6kV DD862 Kilo-Watt-Hour Meter,energy meter