If you don't do it every day, converting single phase power to three phase power can be a confusing topic. Fortunately, the staff at American Rotary does this every day, and we are more than happy to ensure you choose the phase converter solution that is right for your application. The support links to your right can help answer many of the most frequently asked questions  about our industry leading phase converters.

Industry's Leading Technical SupportAmerican Rotary is the only phase converter company that can recommend and supply the ideal CNC phase converter to meet the requirements of your application. Our highly trained technical staff is available toll free to assist you in determining the correct CNC phase converter for your voltage sensitive application. Please call toll free 1-888-743-6832 for assistance.

Sizing chart

Sizing Chart
The following sizing method has been used by American Rotary Engineers to sucessfully size tens of thousands of phase converters. For additional sizing assistance call 1-888-928-3339.

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Phase Converter Simple Installation

In this video, we show the basic installation techniques of the American Rotary Phase Converter Panel.


Linda ., . / .
— Food Service

You do have an amazing item. We used this 5 hp unit to power up a 1.5 hp cooler and a 1 hp ice maker. The system works perfectly. We mounted it on the side interior wall, adjacent to the electric panel.


We hung it with 2 3/8" bolts threw the wall into to upper motor mounts, with the 2 lower mounts in place and resting against the wall. There;s no vibration and minimal noise, and even runs smoother when loaded up.


The control panel mounted directly to the wall adjacent to the motor, allowing for short runs of conduit and wiring. I will take some pictures and show you just what the system is running. The customer is very happy and this saved him $20,000.00 cost if he ran conventional 3 phase, into his building. We showed the customer the operation and the importance of flipping the breaker and the start button at the same time to eliminate  single phasing. The customer keeps his system running continually. I now know where to buy this fine system, the next time needed.

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