SDE Enterprise VFD Chassis front view
1LH Enterprise Chassis

Light Commercial and Agriculture phase converting AFE VFD

The 1LHE Series VFD is a compact, active front end (AFE), IEEE-519 compliant, phase-converting solution for residential, light commercial, and agricultural applications requiring 5-30 horsepower. The 1LHE offers simple setup with lead-lag/duplexing, rugged hardware, and NEMA Type 3R enclosures standard. These VFD’s are easy to configure for pumping, irrigation, motor control, and soft start applications. Common applications include, residential developments, dairy, chicken houses, hog barns, and anywhere phase conversion and voltage-doubling are needed.

See the 1LH Signature or Performance for applications requiring more than 30 horsepower.

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System setup with Perfect Pressure requires only a few minutes and is capable of controlling complex pump systems with ease.

The 1LH Series VFD's control pressure consistently regardless of demand. The pump system runs smoothly with fewer instances of short cycling.


1LH Enterprise VFD in a below-ground installation

The Phase Technologies 1LHE is an industrial-grade product designed for harsh conditions.

Easy Installation

Service and Support

Standard 2-Year Warranty

230 V Model Comparison

Model Horsepower Rated Input Rated Output
1LHE005R 5 HP 26 A 18 A
1LHE007R 7.5 HP 37 A 24 A
1LHE010R 10 HP 48 A 31 A
1LHE015R 15 HP 72 A 46 A
1LHE020R 20 HP 97 A 61 A

230 V → 460 V Voltage Doubling Model Comparison

Model Horsepower Rated Input Rated Output
1LHE205R 5 HP 26 A 9 A
1LHE207R 7.5 HP 37 A 13 A
1LHE210R 10 HP 50 A 18 A
1LHE215R 15 HP 67 A 24 A
1LHE220R 20 HP 97 A 31 A
1LHE225R 25 HP 115 A 38 A

460 V Model Comparison

Model Horsepower Rated Input Rated Output
1LHE405R 5 HP 13 A 9 A
1LHE407R 7.5 HP 19 A 13 A
1LHE410R 10 HP 26 A 18 A
1LHE415R 15 HP 36 A 24 A
1LHE420R 20 HP 48 A 31 A
1LHE425R 25 HP 60 A 38 A
1LHE430R 30 HP 72 A 46 A


MCCB & Service Rated Disconnect

An external service disconnect and integral breaker for ease of maintenance or installations that require it to meet electrical code.

Surge Protection

Strikesorb provides class-leading multiple hit protection ensuring continuous protection of your critical equipment.

Output Filter

460 V installations other than those with short lead lengths often require output filtering to protect the motor from damage.

Hand/Off/Auto (HOA) Switch with Speed Potentiometer

Externally mounted HOA switch and speed potentiometer. Used to switch between user or automatic control and adjust motor speed on the output of the drive.

Extended Warranty

Although durable and robust in design, a little extra peace of mind never hurts. Phase Technologies is happy to offer an extended warranty for all of those applications that demand a bit extra.

About the Panel Shop

The options available for 1LH Enterprise VFD's are built-to-order in our UL 508A panel shop. Every drive is a custom drive at Phase, options typically do not impact lead times.

Read More about the Panel Shop


1LH Series

Contact our sales department for terms and pricing on 1LH Series variable frequency drives.

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