The Kay Industries is the best engineered, most reliable CSA certified Rotary Phase Converter you can buy. Whether you need to power an air compressor, wide belt sander, panel saw, a whole woodworking shop, or a CNC router, you’ll find the Phasemaster® Type MA 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.

The MA-3-VS is specifically designed for CNC router applications where consistant voltage is always required on all three legs of power. The largest motor which can be powered up at any given time is 15 HP but it can handle up to 45 HP in total usage. So no problem to run the CNC router spindle, the stepper/servo motors and the vacuum pump at the same time. Kay Industries Rotary Phase Converters can be purchased for motors from 1.5 HP to 75 HP motors.