... % as order6) Reliable protective functions towards lack of phase, over current, over voltage, short-circuit, over-temperature and etc. 7) Efficiency: >0 ... harsh environment10)has RS-485,A/H,TIMER.AMP/hour meter as order.Specifications: 1) Output DC: 10-20000A, optional selection ... : 0-6V, 12V, 15V, 18V, 24V, 36V, optional selection Switching Power Supply