... MeterApplication DDS877 series electronic single phase watt hour meter is a high technology product adopted advanced IC technology as well as ... environment to guaranty that power meter can operate steadily for a long time. The finished meter don't need to be ... , 2.0Basic Current: 1.5(6)A, 2.5(10)A, 5(20)A, 10(40)A, 45(60)A, 20(80)A, 5(30)A, 10(60)A, 80ms ± 20ms