ET1000 SERIES General-purpose frequency inverter 220V( single phase power) 0.4-2.2 kw 220V(three phase power)0.4-75kw 380V(three phase power)0.75-1000kw. V/F control mode brings the same feeling as vector inverter control 1, Low output harmonic prolongs lifetime of motor. 2, Auto-adjust carrier frequency according to module temperature to adapt the environment. 3, Super low carrier frequency technology effectively reduces inverter output current leak. 4, Flexible multi-steps V/F control mode. 5, Perfect auto-improve torque function. Auto- supply super startup torque function. V/F settings (V/F curve can be set as below). Carton Packing with Foam Inside.