... consumption Long life Lack of phase and reversal of phase instruction Measuring of each phase Three-phase Four-wire Electronic Energy Meter Main function: 1 ... . High reliability, low power consumption, long life, multi-function 2. Fault-tolerant design3. Lack of phase ... 3*5(20) A, 3*5(40) A, 3*5(60) A, 3*10(60) A, 3*10(80) A Three-phase Four-wire Electronic Energy Meter ...