VFD for single phase induction motor

You can run a single phase motor from a VFD. The motor cannot use a switched starting capacitor; it must be either a split capacitor or shaded pole single phase motor. A single phase VFD can be used on these motors. The other consideration is starting torque. The single phase output VFD should be used only on centrifugal loads, such as fans and pumps.

The drive we sell is the Bardac Optidrive. (download brochure here). It’s for motors 1.5 horsepower and less. Call us if you have an application at 800-848-2504800-848-2504 or hit the “Live Support” icon on the right during normal hours. You can also email us by hitting the contact icon on the top right of this page.

Single phase output VFD s are used often for small exhaust fans and so forth in both industrial and commercial facilities and institutions. The advantages to using a single phase output VFD is energy savings, soft starts, and reduced noise.


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