Variable Frequency Drives & Digital Phase Converters


Three-Phase, Active-Front-End Variable Frequency Drives


Three-phase Variable Frequency Drive (VFD) with a low harmonic active front end, integrated in a compact field serviceable 3R enclosure.

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3LHE Series drives have a unique active switching input module that does not produce high levels of harmonic distortion. These drives are IEEE 519 compliant with no additional harmonic filter required. The active front end also provides the added benefit of power conditioning for the VFD. This allows the user to set the output without concern for utility power fluctuations.

Phase Technologies now manufactures optional sine filters at a fraction of industry cost to further reduce expenses associated with long lead installations.

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


Optional Integrated Add-Ons
  • MCCB & Service Rated Disconnect
  • Sine Wave Output Filter
Optional Kitted Add-Ons
  • Strikesorb Surge Protection
  • Protec Surge Protection
  • HOA & Speed Potentiometer
  • 0 - 150 psi Transducer


Models: 3LHE405R 3LHE407R 3LHE410R
General Power Specs      
Rated HP 5 HP 7.5 HP 10 HP
Rated Input Current 9A 13A 18A
Input Voltage 208/240V, three-phase
Rated Output Current 9A 13A 18A
Output Voltage 460/480V, three-phase
Other Specs      
Recommended Breaker Size # # #
Min Wire Size N/A N/A N/A
Enclosure size (H x W x D) 32 x 19 x 19" 32 x 19 x 19" 32 x 19 x 19"
Shipping Weight TBD TBD TBD
Shipping Type Ground Ground Ground