Phase Converter for Welder
High Performance Digital Rotary Phase Converter
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AD – Digital Phase Converter
High Performance Digital Rotary Phase Converter
AD Digital Smart Series – 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.
Floor Mount Style: Some assembly required
AD - Digital Smart Series
In this video we highlight the features and benefits of the American Rotary AD series phase converter.
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.
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AUL - UL Smart Phase Converter
UL Listed Series
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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
Features Gallery
American Rotary engineers the entire phase converter system to provide optimum performance. Our soft start generator and MicroSmartTM controller combine to make the most powerful and precise rotary phase converter on the market.
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Designed and Manufactured in Wisconsin
The focus of American Rotary, is always on innovative engineering, product development, and outstanding customer service. The results are great American made phase converters that work flawlessly, provide unparalleled performance and are easy to install, all at an affordable price.
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Keeping Jobs at Home
Keeping jobs at home not only helps our economy, but it is critical for quality control and for the customer serivce American Rotary provides for all our customers.
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Passion for Performance
American Rotary's breakthrough design of the MicroSmart™ controller (AD, ADX,AMP,AI) allowed it to create the first true digitally controlled phase converter in the industry. Its digital accuracy provides an impressive ability to adapt to changing loads, sagging voltages and gives our phase converters the feel and performance you expect from high precision machines.
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GENTEC Baldor Partnership
The single largest component in a phase converter is the American Rotary Soft Start Generator. American Rotary's engineering departments spent over 2 years engineering the perfect generator for a Rotary Phase Converter, and its patent technology is the best in the industry. American Rotary's custom generator is one of a kind in our industry and outperforms the standard motor/idlers found on a typical phase converter.
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Designed for Phase Converters
American Rotary's custom designed generator uses only 1/3 of the starting current to get the generator started and unlike traditional off the shelf three phase motors they are capable of running 24/7 with no duty cycle. In addition, unlike many competitors that use a three phase motor that have the shaft removed, our generators provide precise power and run cooler, which in turn will extend the life of your idler.
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Stable Voltage and Sinewaves
The induction generator, by design, balances the power factor and phase angle which ultimately leads to true, undistorted sinewaves and more stable voltage. Typical phase converters that use modified motors have distorted sinewaves resulting in harmonics causing high operating temperature on the load motor, putting undue stress on your equipment.
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Open Design (ODP) vs. Enclosed Design (TEFC)
Major manufacturers like American Rotary, Phase-A-Matic, Ronk, and Kay use Open Drip Proof (ODP) style designs. Open designs run cooler, quieter, use less power and can maintain voltage better than TEFC Designs. Only trust Open Drip Proof designed phase converters to run your valuable equipment.
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Voltage Stabilization
A screen shot of an oscilloscope shows the difference in voltage drop using a modified 3-phase motor (GREEN) vs. using a American Rotary Soft Start Generator (RED). This is especially important when running voltage sensitive equipment such as CNC machines, welders and other rectified or computer loads. Stable voltage keeps your equipment protected and running perfectly.
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Built-in Magnetic Starter
American Rotary's magnetic starter provides the means to continuously control your American Rotary phase converter remotely, from multiple locations or in conjunction with automatic equipment. See the Expandable Design – Remote Start Feature for more information on remote start options.
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Quality Control
The American Rotary manufacturing team assembles its starter modules using torque drivers that are tested and certified as a requirement for UL certification at our Wisconsin manufacturing plant. Every control panel American Rotary builds passes over 50 criteria for quality certification before it ships your new phase converter to you!
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Designed for the Hardest Start Ups
American Rotary starters are custom designed to meet even the most difficult loads and the most stringent standards. We oversize the starters to ensure they can handle the entire starting current and continuous load. All American Rotary phase converters undergo rigorous simulation and testing in its R&D department to ensure your equipment and operators are safe and protected.
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Be Safe and Aware!
A starter is not designed or rated to be the safety disconnect. Be aware of phase converters that claim their starter disconnects all three lines of output. A properly used starter only controls the start/stop of the phase converter and does not disconnect the single phase lines. American Rotary will always put your safety first.
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Double or Triple your power!
All American Rotary Phase Converters are capable of phase synchronization for increased capacity. Converters can be daisy chained together to double, triple, quadruple your power. Call or email the American Rotary technical staff for more information on available options.
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Changes with your hobby or business.
As you add more equipment or change the type of equipment you run, the MicroSmart™ controller adapts with your shop needs. Powering your shop or business with a SMARTConverter™ (AD, ADX) ensures your equipment gets the right power at the right time, even as your business changes and grows.
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Remote Start
All American Rotary Phase Converters are designed to work with wired and wireless remote starts. Our long range radio frequency remote starter and receiver works seamlessly with our latching full current magnetic starter to remotely control your converter. Wireless remotes feature 500’ range and include high gain, omni directional antenna and a key FOB or wall mount transmitter. You can also control your converter with our wired remotes!
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Plug N Play
American Rotary realizes that some equipment just isn’t meant to be hard wired. So it gave every phase converter a space for a twist-lock, 3-phase receptacle and a flush mount 3-phase breaker Great for welders, battery chargers, mobile jobsite converters and more.
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Easy Access Wiring
Designed to meet UL minimum space requirements, American Rotary enclosures have removable sides so that the oversized terminal blocks can be accessed with ease. The cover is hinged and can be easily removed.
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Oversized Terminal Blocks
Copper Aluminum Alloy and Nylene terminal blocks are specifically designed and molded for American Rotary phase converters in order to provide easy organized connections for a carefree, UL compliant installation. Terminal blocks are clearly marked for trouble-free installations.
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Knockouts
No drilling or punching needed! All the necessary knockouts for installation are provided and powder coated to prevent rust. The knockouts are sized for the maximum anticipated conduit for proper wire gauge per NEC.
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Laser Precision
The design flexibility and time savings features that laser cut steel provides is an important part of the quality of an American Rotary phase converter. From knockouts for breakers and receptacles, to perfectly mitered corners, laser manufacturing results in a longer lasting, better quality product.
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SMART CONTROL
The American Rotary MicroSmart™ Controller is a patent technology which provides precise control of the phase converter. It monitors the voltage every millisecond providing better voltage control, prolonging the life of the converter, handles significantly more load capacity (ADX and AI), and enabling several failsafe features that are only available on American Rotary’s SMART Series™ phase converters. (AD, ADX, AMP and AI units only)
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Block Diagram
Smart Series™ digital rotary phase converters (AD, ADX, AMP and AI) run on our MicroSmart™ Controller. This custom designed microprocessor delivers the right power at the right time in both start-up and run mode. The MicroSmart™ controller monitors and takes a sampling of the voltage every 50 milliseconds on all three lines of the output voltage.. (AD, ADX, AMP and AI units only)
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Proprietary Technology
American Rotary has invested extensively in research and design to create the state of the art MicroSmart™ Digital Controller. Other so called “digital” rotary phase converters use an off the shelf voltage relay that does not monitor the voltage like the MicroSmart™ Controller. (AD, ADX, AMP and AI units only)
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Invest in power
All American Rotary Smart Series™ phase converters are designed to grow with your business. Our converters are engineered to allow numerous upgrade options, including; Hardware, Software and Kit upgrades. You can also run our phase converters in parallel and double your power to adapt to your changing needs. Need more power? More precise power? Just turn on your American Rotary Smart Series™ and let our technology do the work. (AD, ADX, AMP and AI units only)
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Powerful Load Starting Capability
High inertia and high friction loads such as air-compressors, blower, fans, flywheel & lifting loads can draw 6 times FLA (full load amps) for several seconds during start up. The CTR acts as a stabilizer, ensuring consistent voltage and current. CTR allows our ADX and AI phase converters to start your high inertia machinery with ease in about 1/3 the time of a standard phase converter. (ADX and AI units only)
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Engineered to Perform
American Rotary leads the industry with its innovative CTR technology. CTR (Current Transient Reactor) along with the MicroSmart ControllerTM allows high currents to be drawn through the phase converter producing more torque while maintaining voltage and power. (ADX and AI units only)
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Reliable & Long Lasting Phase Converters
American Rotary's proprietary CTR technology provides a layer of protection against external transient current spikes on the incoming single phase line at start up. Our CTR technology allows us to offer the best phase converter warranty in the industry. (ADX and AI units only)
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Reliable & Long Lasting Equipment
Even if your equipment doesn’t need incredible starting performance, the American Rotary CTR technology will ensure your equipment starts as designed. Fast start up times ensure your equipment will run cooler, run more reliably and last longer. The ADX and AI lines are designed to protect and handle even the hardest loads. (ADX and AI units only)