It is a single-phase input frequency converter with a voltage of 220 V to drive a three-phase motor (remember to change the connection method to the t-triangle type). Four-digit digital tube display, 1,0-99,0Hz output, to improve the output voltage, this product uses SVPWM modulation mode, 8,0KHz carrier frequency. Suitable for motors below 750W, the maximum output power is 1100W. Functions: It is a single-phase input frequency converter with a voltage of 220 V to drive a three-phase motor (remember to change the connection method to the t-triangle type). Four-digit digital tube display, data are clearly visible. Support displays heater temperature value, current value, DC main voltage value, motor speed, operating frequency value. 1.0-99.0Hz output, to improve the output voltage, this product uses SVPWM modulation mode, 8,0KHz carrier frequency. The frequency converter can freely change the U/f curve by setting the U/f compensation frequency and the voltage ratio at the frequency. By setting the maximum value of the U/F curve, according to the load situation, to maximize the efficiency of electricity utilization, reduce the heat of the motor, prolong the life of the motor and frequency converter. High torque low frequency, single phase input 220V, three phase output 220V, energy saving and electricity saving. Protection against overheating and overvoltage. Specifications: Name: frequency converter Material: ABS Power: AC220V±20% Input speed: 3000 rpm /min Output speed: 0-3000 rpm /min Speed control range: 0-1800 rpm /min Rated Power: 0,75 kW Temperature: -10 ℃ to 55 ℃ Humidity: 0-65% Product Size: 100 * 60 * 113,5 mm / 3,94 * 2,36 * inch Package Weight: 400g / 0,88lb List of things to pack: 1 * frequency converter