Feature:1. With 8segment programmable, multistage speed control, has torsion or speed control mode optional.2. Comes with standard RS485 RTU mode, 05v/010v/420ma/020ma multiple analog input and output.3. With PID control, constant pressure water supply, wind pressure and constant pressure control, low noise, low electromagnetic interference and other functions.4. The builtin filter can suppress highfrequency harmonics, reduce the impact of harmonics on the power grid, and reduce interference.5. Provide protections against overcurrent, overvoltage and undervoltage, module failure, overheating, short circuit, phase loss, abnormal parameter adjustment, etc.Specification:Item Type: Frequency ConverterModel: AT4-4000XAT904-4KWInput Voltage: Single-phase 220VAC 50/60HzOutput Voltage: 3-phase 0-380VAC 0-400HzMaximum Output Current: 20AAdapted Motor Power: 4KW(6HP)Filter: Built-in filterApplication: GeneralDC Power Supply Nature: Voltage typeControl Method: V/F open loopOutput Voltage Adjustment Method: PWM controlMaterial: ABS plastic shellPurpose: Control the start, stop, speed adjustment and CW and CCW of the motor to meet the conditions required for production or equipment use, widely used in fans, water pumps, air compressors, etc.Size: Approx. 241 x 151 x 171mm / 9.5 x 5.9 x 6.7in.Package List:1 x Frequency Converter1 x User ManualNote:This product is suitable for 3phase motors with a voltage of 380V. Please confirm whether your equipment is compatible with the product before purchasing.