Feature:1. Automatic Voltage Stabilization: Dynamic stabilization, static stabilization, and unregulated stabilization can be selected as needed2. Low Frequency and Large Torsion: The starting torsion hits twice the rated torsion and constant torsion output within 50HZ3. Energy Saving: Soft start and stop, energy and power saving, bring motor protection, stepless speed regulation, and low noise operation4. Protection Functions: Provide overload, overheat, overvoltage, overcurrent, undervoltage, phase loss, grounding, short circuit, and stall protection, flame retardant, moisture proof, anti corrosion and salt spray proof5. Wide Range of Applications: Suitable for construction sites, factories, water plants, central air conditioning water systems, machine tools, automation equipment, etc.Specification:Item Type: Variable Frequency DriveShell Material: ABS plasticPower Phase Number: 3 PhaseProduct Size(LxWxH): Approx. 24.5 x 15 x 18.5cm / 9.6 x 5.9 x 7.3inApplication Equipment: Motors, mixers, ball mills, water pumps, cranes, conveyors, air compressors, fans, CNC machine tools, etc.ModelPower(KW)Input voltageVOutput voltageVFrequency modulation rangeHzAT900-55000X5.538015%0-3800-400AT900-75000X7.538015%0-3800-400.Package List:1 x Variable Frequency Drive1 x User ManualNote:Please read the user manual carefully before use, the input voltage is three phase 380VAC, please do not overload operation.