American Rotary AR Pro Phase Converter

R Series – General Purpose Rotary Phase Converters

The AR Series is designed to provide utility-grade three-phase power for light to medium duty applications using a single-phase electrical supply. These converters are built for reliability, straightforward installation, and general-purpose equipment where consistent power matters without requiring heavy industrial systems.

All AR models are floor-mounted and intended for indoor use. Some assembly is required.

AR-5 Rotary Phase Converter

The AR-5 is the entry-level option in the AR Series, designed for small shops and light-duty equipment. It provides stable three-phase power for single-machine setups where loads are modest and predictable.

This model is well suited for smaller motors, basic shop tools, and light manufacturing or maintenance applications where simplicity and cost efficiency are priorities.

Best for:
Light-duty machines, small motors, single-machine setups, basic shop equipment.

AR-10 Rotary Phase Converter

The AR-10 offers increased capacity over the AR-5, making it a better fit for slightly larger motors and more frequent use. It delivers smoother startup and more consistent performance for equipment that runs longer cycles or places greater demand on power stability.

This model is a common choice for small commercial workshops stepping beyond entry-level needs.

Best for:
Light to medium-duty machines, small lathes and mills, compressors, and workshop equipment.

AR-15 Rotary Phase Converter

The AR-15 is designed for medium-duty applications where reliable three-phase power is required for larger single machines. It provides improved headroom for startup current and better stability under sustained load compared to smaller AR models.

This is a strong option for growing shops that need dependable performance without moving into industrial-grade systems.

Best for:
Medium-duty shop equipment, larger lathes or mills, pumps, and compressors.

AR-20 Rotary Phase Converter

The AR-20 steps firmly into higher-capacity general-purpose use. It is designed for equipment that demands stronger startup performance and more consistent operation throughout the workday.

This model is well suited for workshops running larger three-phase machines on a regular basis where reliability becomes increasingly important.

Best for:
Medium-duty production equipment, larger motors, continuous-use shop machinery.

AR-25 Rotary Phase Converter

The AR-25 is built for heavier general-purpose loads where smaller converters begin to reach their limits. It delivers stable, utility-grade three-phase power for larger machines and higher duty cycles while remaining simpler than full industrial systems.

This model is often selected by shops that have outgrown mid-range converters and want more margin and reliability.

Best for:
Medium to heavier-duty machines, larger compressors, pumps, and shop production equipment.

AR-30 Rotary Phase Converter

The AR-30 is designed for demanding general-purpose applications that require consistent power delivery and dependable startup performance. It provides the additional capacity needed for larger motors and equipment that operate under regular load.

This model bridges the gap between general-purpose and industrial use, offering strong performance without unnecessary complexity.

Best for:
Heavier shop equipment, larger motors, frequent or extended runtime applications.

AR-40 Rotary Phase Converter

The AR-40 is the highest-capacity model in the AR Series, intended for the most demanding general-purpose applications. It delivers stable, utility-grade three-phase power for large machines where uptime and electrical stability matter.

This model is ideal for operations that need maximum capability within a general-purpose system before stepping into industrial-grade converters.

Best for:
Large general-purpose machines, high-demand shop equipment, applications requiring maximum capacity in the AR range.