Major technical data: Accuracy class: 1. 0 Power consumption: < 6VA Rated voltage: 220V Basic current: 1. 5(6)A, 5(30)A, 10(50)A, 20(80)A Rated frequency: 50Hz Overload: 6 times Operating life: >20 years Main functions: By adopting advanced PCB and SMT technology, the DDS 318 single phase long life electronic energy meter is used to measure the energy of 50Hz single phase A...C power. Features: 1) High accuracy, reliability, overload capability 2) Low power consumption 3) SMT technology and re-flow soldering technology 4) Light weight, small size, easy to install