Feature: 1. COPPER COIL: The frequency inverter adopts excellent copper core coil with strong resistance and high load capacity, stable and reliable in performance. 2. STABLE CONNECTION: Support VF control, vector control and output torsion control, built in RS485 communication interface, stable connection with less interference. 3. MULTIPLE CONTROL: With speed potentiometer and external panel, built in synchronous control and proportional synchronous control, has 6 speed control modes. 4. GOOD COOLING: Adopt strong cooling fan design, built in aluminum block to assist heat dissipation, the variable frequency drive has good heat dissipation effect. 5. APPLICABLE SCENES: The inverter is suitable for fan, pump, automatic machine tool, engraving machine, etc., with small size, large torsion, strong practicability. Specification: Item Type: Frequency Inverter Material: PC, Aluminum Model: SKI780 5D5G 4 Applicable Motor: 5.5KW 7.5HP Input: AC3PH 380V±15%, 15A, 47Hz-63Hz Output: AC3PH 0V-380V, 13A, 0Hz-400Hz Protection Class: IP20 Installation Height: Up to 1000 meters (3280 ft) above sea level, if the installation height is higher than this value, the current should be reduced by 1.2% for every 10 meters (328 feet) of height Operating Ambient Temperature: 0-40℃ (32-104℉) Storage Temperature: -20-55℃ (-4-131℉) Air Humidity: 5%-85% during operation, no condensation or freezing; 5%-95% during storage. Package List: 1 x Frequency Inverter1 x User Manual Note: Pay attention to electricity safety when installing and using.