Digital Phase Converter

General Purpose Rotary Phase Converter

The American Rotary Digitally controlled Rotary Phase converter is the perfect solution for all your three phase power needs.


AD: The AD Rotary Phase Converter is specifically suited for CNC, VFD, rectified, and any other voltage-sensitive equipment.


Best for: Any load, especially resistive, rectified, and computer loads such as CNC, VFD, EDM, and battery chargers.


AMP – The AMP Mobile rotary phase converter is plug-and-play ready for a quick and cost-effective installation. Equipped to run 208-250V equipment in three tiers:


  • Tier 1: 1 Breaker and 1 Receptacle
  • Tier 2: 2 Breakers and 2 Receptacles
  • Tier 3: 3 Breakers and 3 Receptacles


These built-in features allow this unit to be little to no installation costs! In addition, this unit comes built with our top-of-the-line Smart Series features to run any and all load types making this unit fully versatile for your needs!


ADX – The ADX Smart Series Rotary Phase Converter is designed for high inertia/friction loads. The ADX rotary phase converters have current control to provide consistent torque while starting high inertia, extremely hard starting loads, yet are precise enough for CNC applications.


Best for: High Inertia/friction loads such as pumps, fans, compressors, blowers, dust collectors, and flywheels.


AUL – UL licensed units may be required by your state or local inspector. If you require a UL licensed unit our AUL model is the right model for you delivering all the power and features of our ADX and AI units.


AI -The AI Industrial was designed specifically for the demands of industrial and agricultural applications. Our AI Industrial digital phase converter is designed with a Type 3R enclosure for ultimate protection.


AI Industrial can save you thousands of dollars a year over utility and diesel generated power sources.

Phase Converter Wizard

When sizing for a Rotary Phase Converter it is best to size with a 2:1 ratio to ensure you will have enough starting capacity. This sizing guideline will protect your equipment long term and ensure it performs at its highest efficiency.

Try out our Phase Converter Wizard by selecting your equipment type and inputting its total HP rating to see which converter series and size would be best for you.


Phase Converter for Welder

High Performance Digital Rotary Phase Converter

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AI - Industrial Phase Converter

Industrial Grade Phase Converter

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ADX - Smart Phase Converter

Extreme Duty Digital Rotary Phase Converter

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AD - Digital Phase Converter

High Performance Digital Rotary Phase Converter

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AR - Pro Phase Converter

General Purpose Rotary Phase Converter

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For models 75 and larger please call us at 1.888.743.6832

Build your phase converter

Start with our Sizing Chart

Digital Phase Converter