Manufacturer of electrical phase converters used to operate three-phase motors from single-phase power sources when utility three-phase power is either unavailable or prohibitively expensive to extend. Applications include irrigation and other pump motors pivots aerators etc. A leader in the phase conversion industry since 1952 our products are available through local electrical distributors. Other products manufactured by Ronk include double-throw switches for back-up generators power factor correction capacitors stray voltage isolators and corrosion resistant enclosures made from aluminum.