Kay Industries is the leading manufacturer of Phasemaster rotary three-phase converters, providing the most reliable and cost-effective solution for running three-phase equipment from a single-phase source.

A phase converter converts single-phase utility power into three-phase electricity, offering significant economic advantages over utility line extension. With over 45 years of experience, Kay Industries engineers high-performance converters precisely tailored to your application requirements, ensuring optimal machine performance.

As the industry's first to offer performance guarantees and extensive approvals, we ensure total customer satisfaction. We eliminate the confusion surrounding sizing and selection by providing comprehensive tables and expertise, making us the trusted choice for all your power conversion needs.