VEVOR VFD Drive VFD Inverter 220V 3KW 4HP 13A Frequency Drive Inverter Professional Variable Frequency Drive VFD for Spindle Motor Speed Control (3KW VFD)
The voltage between any two lines of the UVW output is 220 volts and cannot be used with the center line. Because the inverter output can only be used for three-phase AC asynchronous motors. The input voltage is also the same, and the voltage between any two lines of the input is also 220 volts. The output voltage will change as the frequency changes.
That 20A is the limit current of the frequency converter, which is the maximum protection current. The actual operating current changes due to changes in the load of the motor, and it does not always output such a large current.