Simple to deploy and cost-effective solutions designed specifically for irrigation

Home wells to municipal water systems, intentional design saves time and money

Motor Control

Motor control features you won't find anywhere else in the industry

Oil & Gas

Durability and features designed specifically to save time and money in the field

Elevators

Phase Perfect ® enables by far the most cost-effective elevator operation

HVAC

Power money saving three-phase HVAC equipment from single-phase power

Machine Shops

Exploding usage of CNC demands utility-quality power, Phase Perfect ® to the rescue

Woodworking

Your power source shouldn't limit your shop’s layout or equipment choices.

Wineries

Pumps, destemmers, screws, and presses demand balanced three-phase power in a rural setting

Shop By Industry

Low Harmonic

Motor Control, Built To Last.

A low-harmonic VFD that converts single- or three-phase power into clean three-phase output — with built-in voltage doubling and harmonic mitigation, from 5 to 500 HP.

Shop LHX Drives Downloads

Active Front EndPower ConditioningRegenerative Power5 - 500 HPOpen & NEMA 1 Indoor Enclosure

Easy Setup
Wizards

Voltage
Doubling

Regenerative
Power

Power
Conditioning

Low
Harmonic

Built To Take It

Engineered For Harsh Conditions.

With a 50°C temperature rating and a 1,200V+ transient voltage rating, the LHX is built to keep running through heat and power spikes. It’s available in Open and NEMA 1 configurations for indoor installs and panel builds. All our enclosures are made in-house at our metal fabrication shop, ensuring the highest quality products, proudly made in America.

Common Applications

Center Pivots

Well Pumps

Available as a standalone drive and enclosed-panel configuration
Power conditioning for smooth power input
Easy Set Up Wizards preprogrammed for quick and easy startup
UL compliant without the need for an external harmonic filter
Phase Correcting and Voltage Doubling capabilities for single phase to three phase input

Craft Your Configured Panel

Custom Panel Shop Options For Any Application

Our LHX model variable frequency drive (VFD), featuring low harmonic, phase conversion, and voltage doubling technology, offers improved power quality, three-phase output, and 230 V to 460 V voltage doubling capabilities. This VFD is designed to reduce harmonic distortion, making it ideal for applications that demand enhanced energy efficiency and reliable operation in both industrial and commercial environments.

Our LHX drives are available as NEMA 1 or in an open configuration for panel builders. LHX VFD's can also be configured into one of our customizable NEMA 3R panels. No matter your need Phase Technologies has a VFD or panel that will fit your application.

1LH

5 – 200 HP, Single-Phase Input, Low Harmonic VFD Panel (NEMA 3R)

3LH

5 – 500 HP, Three-Phase Input, Low Harmonic VFD Panel (NEMA 3R)

1Ø Variable Frequency Drives

The Right Drive,
Right Out Of The Box.

Find the drive that fits the job. The Product Builder narrows the Phase VFD lineup by input phase, voltage, horsepower and amps, then lets you add the options and accessories your install calls for.

Single-Phase InputThree-Phase InputVoltage DoublingPhase Connect ReadyMade In The USA

Launch Product Builder

Phase Technologies variable frequency drive

Nomenclature

50°C

Temperature Rating

<5%

Total Harmonic Distortion

1,200V+

Transient Voltage Rating

1LHX Series

1LHX Models

Input: 230 V, 1-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
1LHX005	5	230	230	26 A	18 A
1LHX007	7.5	230	230	37 A	25 A
1LHX010	10	230	230	48 A	31 A
1LHX015	15	230	230	72 A	46 A
1LHX020	20	230	230	97 A	62 A

Input: 230 V, 1-Phase / Output: 460 V, 3-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
1LHX205	5	230	460	26 A	9 A
1LHX207	7.5	230	460	37 A	13 A
1LHX210	10	230	460	50 A	18 A
1LHX215	15	230	460	67 A	25 A
1LHX220	20	230	460	97 A	31 A
1LHX230	30	230	460	139 A	46 A
1LHX240	40	230	460	196 A	61 A
1LHX250	50	230	460	226 A	77 A

Input: 460 V, 1-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
1LHX405	5	460	460	13 A	9 A
1LHX407	7.5	460	460	19 A	13 A
1LHX410	10	460	460	26 A	18 A
1LHX415	15	460	460	36 A	25 A
1LHX420	20	460	460	48 A	31 A
1LHX425	25	460	460	60 A	38 A
1LHX430	30	460	460	72 A	46 A
1LHX440	40	460	460	98 A	61 A
1LHX450	50	460	460	121 A	77 A
1LHX460	60	460	460	143 A	91 A
1LHX475	75	460	460	170 A	107 A
1LHX4100	100	460	460	226 A	142 A
1LHX4125	125	460	460	273 A	172 A
1LHX4150	150	460	460	315 A	198 A

3LHX Series

3LHX Models

Input: 230 V, 3-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
3LHX005	5	230	230	18 A	18 A
3LHX007	7.5	230	230	25 A	25 A
3LHX010	10	230	230	31 A	31 A
3LHX015	15	230	230	46 A	46 A
3LHX020	20	230	230	61 A	61 A
3LHX025	25	230	230	75 A	75 A
3LHX030	30	230	230	91 A	91 A

Input: 230 V, 3-Phase / Output: 460 V, 3-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
3LHX205	5	230	460	18 A	9 A
3LHX207	7.5	230	460	25 A	13 A
3LHX210	10	230	460	30 A	18 A
3LHX215	15	230	460	46 A	25 A
3LHX220	20	230	460	60 A	31 A
3LHX230	30	230	460	91 A	46 A
3LHX240	40	230	460	121 A	61 A
3LHX250	50	230	460	154 A	77 A
3LHX260	60	230	460	182 A	91 A
3LHX275	75	230	460	214 A	107 A

Input: 460 V, 3-Phase

Model	Horsepower	Input Voltage	Output Voltage	Rated Input Current	Rated Output Current
3LHX405	5	460	460	9 A	9 A
3LHX407	7.5	460	460	13 A	13 A
3LHX410	10	460	460	18 A	18 A
3LHX415	15	460	460	25 A	25 A
3LHX420	20	460	460	31 A	31 A
3LHX425	25	460	460	38 A	38 A
3LHX430	30	460	460	46 A	46 A
3LHX440	40	460	460	61 A	61 A
3LHX450	50	460	460	77 A	77 A
3LHX460	60	460	460	91 A	91 A
3LHX475	75	460	460	107 A	107 A
3LHX4100	100	460	460	142 A	142 A
3LHX4125	125	460	460	172 A	172 A
3LHX4150	150	460	460	198 A	198 A
3LHX4200	200	460	460	250 A	250 A
3LHX4250	250	460	460	304 A	304 A
3LHX4300	300	460	460	362 A	362 A
3LHX4350	350	460	460	415 A	415 A
3LHX4400	400	460	460	515 A	515 A
3LHX4500	500	460	460	608 A	608 A

Product Resources

1LH Series Downloads

ManualPDF

Low Harmonic Product Brochure6.4 MB LHX Series Manual6.7 MB

Quick-Start Guide/SUPPORT/GUIDES/INSTALL/3LHX

3LHX Quick Start Guide 1LHX Quick Start Guide

BrochurePDF

LHX Series Brochure2.7 MB

Modbus ManualPDF

LHX Series Modbus and BACNet User Manual3.4 MB

OtherPDF

LHX Series Product Overview4.9 MB System Config Settings LHX/DXL Models2.2 MB LHX Series Cut Sheet0.9 MB

Line DrawingsPDF

LHX Series Line Drawings3.0 MB

Input Power

Input Phase:	1-phase \| 3-phase
Input Voltage:	230 V \| 460 V
Input Voltage Range:	187 V - 260 V \| 200 V - 520 V
Input Frequency:	60 Hz
Input Switching Frequency Default:	4 Hz \| 2 Hz
Input Switching Frequency:	1.5 Hz - 5 Hz
Max Line Side Input Wire:	2x500 kcmil
Line Side Input Torque:	17.5 in-lb \| 375 in-lb \| 10.5 in-lb \| 500 in-lb

Output Power

Output Phase:	3-phase
Horsepower:	5 HP - 500 HP
Output Voltage:	230 V \| 460 V
Output Voltage Range:	100 V - 270 V \| 200 V - 530 V
Output Switching Frequency Default:	4 Hz \| 2 Hz
Output Switching Frequency :	1.5 Hz - 5 Hz
Max Load Side Output Wire:	2x500 kcmil
Load Side Output Torque:	10.5 in-lb \| 17.5 in-lb \| 375 in-lb \| 500 in-lb

Show More Specs

Built In The USA

Proudly American Made

Every Phase drive is engineered, assembled and tested at our Rapid City, South Dakota headquarters — with the industry’s fastest lead times.

BABA Compliant · Build America, Buy America