Type TMA™ Rotary Phase Converter

ehe best engineered, most reliable Rotary Phase Converter you can buy.


If you are not an electrician, or are not using an electrician for you installation, we recommend you consider the Phasemaster™ or E-Phase™.

If you are a professional, the Prophase™ rotary converter is made for you.

Whether you need to power an air compressor, a woodworking shop, or a laser, you’ll find the Type TMA™ rotary three phase converter up to the task.

This general-purpose rotary phase converter is a reliable source of true three-phase power. When connected to a 230 volt 1-phase line, the Type MA™ phase converter produces 3-phase power at its output terminals with each phase shifted 120°. You get a near replica of utility 3-phase power-more economically.

Designed to be CNC Rotary Balanced!  PRO-PHASE™ rotary converts are made in the USA. They exceeds industry performance standards; powering sensitive modern CNC and traditional three phase equipment.  Pro-phase™ rotary phase converters for sale on include efficient removable back plates, built-in motor starter, digital start protection, soft start, full three line break; Kay Industries support and simple installation.  

Reliability is important and supported with a 5 year warranty.  In true American form we design Prophase™ rotary phase converters to work; everyday, for a very long time.

Do right by your equipment and feed it the balanced power Prophase™ is engineered to offer.

Best Applications: Mills, Lathes, Dough Mixers, Table saws, typical motors, resistive and inductive loads.  

Look at our application guide to find out which model is best for your application, take a look at the product literature, or contact us for assistance.

All Kay Industries rotary phase converters can be tailored to meet your specific application needs with a wide range of accessories including.

Automatic controls enable remote monitoring of unattended or cyclical applications.

Disconnect switches provide simple and fast installation-2 wires in, 3 wires out.

Surge protectors safeguard converters from lightning or other surges.

Transformers handle special voltage requirements

Outdoor enclosures provide maximum weather protection in severe environments.