... of its superior performance can be widely used in industry(such as the chemical industry, metallurgy, instrumentation ... light industry etc.,) scientufic experments, utilities, househole appliances, in order to achieve the regulator, temperature, speed, power and ... phase, single-phase m=1 three-phase m=3 12-rated output current(A) U2-largest out voltage(V)(for the three-phas line coltage)3 ...