Variable Frequency Drives & Digital Phase Converters


Phase-Converting Variable Frequency Drive


Designed specifically for pumping applications. Phase-converting VFD for a single 5HP motor load.

Build & PriceBuild Now
Send by EmailSend Now
Have Questions? Contact Us
Social Media



Phase Technologies has designed a simple, phase converting solution for residential and light commercial constant pressure installations (2-10hp). The SD product line offers simple setup, rugged hardware, 3R cabinets, and a top of the line oil filled pressure transducer standard with every package.

Return trips are expensive and can many times lead to a poor customer image of the installation. Phase Technologies has produced a product line specifically to solve this problem, the SD series. With pricing that even the most budget minded customer will appreciate and 3 year warranty the SD series is the best choice for small constant pressure applications.

Demand-driven constant pressure for home wells is now inexpensive, reliable, and a luxury available to all homeowners thanks to Perfect Pressure, standard with all SD and 2XD systems. Perfect Pressure only requires a few minutes of setup time and is capable of controlling the most complicated plumbing systems with ease. With constant pressure, plumbing systems run smoothly with fewer instances of short cycling.

Target Market

Industries served, Wells Pumps, Irrigation Pumps, Motor Control

Standard Features
  • NEMA 3R Enclosure w/Insect Guards
  • Easy Perfect Pressure™ Setup
  • 2-Year Warranty
  • 122° F (50° C) Rated
  • Easy Field Serviceability
  • Includes 0 - 150 psi transducer


Optional Add-Ons
  • HOA & Speed Potentiometer
  • Surge Protection (SPDee S50A120V2PN)


Models: SD405R SD407R SD410R
General Power Specs      
Rated HP 5 HP 7.5 HP 10 HP
Rated Input Current 30A 37A 42A
Input Voltage 480V, single-phase
Rated Output Current 10A 13A 18A
Output Voltage 480V, three-phase
Other Specs      
Recommended Breaker Size 40A 50A 50A
Min Wire Size N/A N/A N/A
Enclosure size (H x W x D) 29 x 15 x 10" 29 x 15 x 10" 29 x 15 x 10"
Shipping Weight 15 lbs 17 lbs 18 lbs
Shipping Type Ground Ground Ground

Related Products