... noise, energy saving, high torque output at low Frequency Converter (Frequency Inverter) HPI6002(0.4KW-15KW): All plastic molding ... -in speed potentiometer and easy to adjust frequency. Frequency Converter (Frequency Inverter)(0.75KW-90KW) Friendly user interface, ... , easy to meet the different requirements of automation Frequency Converter (Frequency Inverter) HPI6006(110KW-500KW) All components adopt ...