SD VFD Chassis front view
SD Standard Chassis

Residential and Light Commercial phase converting VFD

The SD Series VFD is our simple, phase-converting solution for residential and light commercial constant pressure installations requiring 2-5 horsepower. The SD product line offers simple setup, rugged hardware, NEMA Type 3R enclosures, and a low noise oil-filled pressure transducer. Enjoy industrial VFD quality and robustness in a drive that is easy to configure and well priced for pumping, irrigation, motor control, and soft start applications.

See the SDE Series for applications requiring additional options or greater than 5 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 SD Series VFD's control pressure consistently regardless of demand. The pump system runs smoothly with fewer instances of short cycling.


SDE Enterprise VFD in a below-ground installation

The Phase Technologies SD Series incorporate the same design principles as our larger industrial-grade products.

Easy Installation

Service and Support

Standard 2-Year Warranty

230 V Model Comparison

Model Horsepower Max Input Max Output Weight
SD002R 2HP 20A 8A 10lbs
SD003R 3HP 30A 10A 10lbs
SD005R 5HP 42A 18A 11lbs


SD is also available in a Enterprise, highly-configurable, variant for installations requiring the options available in the Enterprise chassis.

A high-quality transducer is standard with SD Series drives. For integral surge protection, service disconnect, output filtering, HOA switch and/or speed potentiometer see the SDE series.

SD-SDE Series

Contact our sales department for terms and pricing on SD and SDE Series variable frequency drives.

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