Phase Converters

Low Harmonic VFDs

Low Harmonic VFDs: Our Low Harmonic VFDs are engineered to meet strict IEEE-519 compliance standards, delivering clean, efficient power with minimal total harmonic distortion.

Variable Frequency Drives

Industrial VFDs

Industrial VFDs: Our Industrial VFDs are built to handle high-demand, three-phase motor applications in harsh environments.

Panel Shop

Residential VFDs

Residential VFDs: Phase Technologies’ Residential VFDs—including the ES, SD, and Alpha Drive—are designed to deliver efficient, quiet, and reliable motor control for single-phase and three-phase applications.

Panel Shop

Panel Shop

Panel Shop: Looking for added customization or enhanced functionality for your VFD system? Our 508A Custom Panel Shop offers fully integrated solutions with tailored components that boost performance, protect equipment, and extend the life of your VFD and motors.

what is a variable frequency drive?

A Variable Frequency Drive (VFD) is an advanced motor controller that adjusts the speed of an electric motor by varying the frequency and voltage of its power supply. By controlling how quickly a motor ramps up or down, VFDs improve performance, protect equipment, and save energy.

Customers choose VFDs to boost efficiency, reduce energy costs, lower system noise, extend equipment life, and better match motor speed to application demands. Modern drives also offer diagnostics and network capabilities to increase productivity and optimize system performance.

VFDs are commonly used in fans, pumps, and compressors—making up about 75% of drives used worldwide. Compared to simpler options like soft starters or across-the-line contactors, VFDs offer smarter, more flexible motor control for today’s industrial and commercial systems.

how are phase technologies products different?

We deliver a complete motor control solution built for performance, reliability, and long-term value. Unlike large multinational brands that treat drives as a small piece of a massive product catalog, Phase Technologies is deeply focused on power electronics and how to flat out make them better using American engineering and manufacturing.

Every drive we ship is engineered and tested for the real-world demands of your application. From our proprietary AuxPower™ technology to our revolutionary voltage doubling capabilities, our products are packed with features that solve real problems—especially for single-phase and rural power challenges. We don’t just offer flexible drive systems; we design them to work seamlessly with your motor technology, environment, and goals.

Made in the USA

Industry’s Best Lead Times

Exclusive AuxPower™ Technology for powering accessories

Voltage Doubling Technology for flexible single-phase input

Expert Support Team