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All of its properties are in line with GB / T 17215-2002 standard, a single-phase watt-hour meter, and GB / T 17882-1999 "special requirements of multi-rate watt-hour meter" in the relevant technical requirements, the data communication protocol in line with DL/645- 1997 of the relevant requirements. This product is high accuracy and overload strong, power consumption, small size, long life; data plus a fault-tolerant error correction to ensure accurate and reliable data; power down automatically when all of the information stored watt-hour meter; LCD automatic rotation, the total accumulated significantly power, each time the cumulative rate of consumption, real-time power, the current date and time and the current rate of period signs. By IR and RS-485 communication interface function table settings, clock settings, time programming and more.

Function:
  Function of multi-rate.
  Adopts the ratifying and error checking function, make sure the data correct and reliable. 
  Function of recording programs setting and remote controls.

Operating voltage range:
Rated voltage: 3 × 220V; Rated Frequency: 50/60Hz; calibration current: 3 × 1.5 (6) A (Transformer access type), 3 × 2.5 (15) A, 3 × 2.5 (10) A, 3 × 5 (6) A, 3 × 5 (10) A, 3 × 5 (30) A, 3 × 10 (60) A

Main Technical Specifications:
Rated Voltage:  3 x 220v
Rated Frequency:  50/60Hz
Nominal Current:  3x1.5(6)A, 3x2.5(15)A, 3x2.5(10)A, 3x5(6)A, 3x5(10)A, 3x5(30)A, 3x10(60)A