... DMM28 (DD28) single phase mechanical kilo watt-hour meter is applicable to measure 50 Hz or 60 Hz ... or bakelite with glass window (optional); Meter base Aluminium, steel, bakelite etc; Meter terminal block is made of quality bakelite ... 3(6), 5(10), 10(20), 20(40), 30(60), 40(80)0.5%IbAC Voltage 2kV for 1minute ... voltage 6kV5(15), 5(20), 10(30), 10(40), 20(80), 30(100)*Please advise us if you have ...