John Wilson
Well-Known Member
i would buy the biggest VFD you can afford. If you decided to go 220 and 2HP later, you won't have to buy another VFD. The HP rating of a VFD is the max. For example, you can run a 1HP or 1.5HP motor on a 2HP VFD. That just takes load off the VFD. The motor is what draws the amps. The VFD has to be rated to push that many amps. The VFD can always be a higher rating than the motor, but not the other way around.