CE, ISO9000 certification 3 phases, 380V AC 5.5~7.5KW inverter VVVF control, constant,vairable torque ... mode VD4 series3 phases, 380V AC 5.5~7.5KW invertersVD4-45P5Suitable motor: 5.5KW, rated ... cable of digital panel; brake resistor. frequency inverter VD4 series ac frequency inverter