Build Your Phase Converter

50+ Years American Engineering

True Balanced
Three-Phase Power

Rotary phase converters hand-built in Phoenix, Arizona. Convert single-phase to true three-phase power with CNC-grade voltage balance and a lifetime warranty.

Configure Your Converter Speak to an Engineer

Scroll

Lifetime Warranty

Every component covered for life. No fine print, no questions asked.

50+ Years Experience

Daniel Floreancig — the best in the business for phase converter engineering.

Ships in 1–3 Days

Most models in stock, ready to ship from our Phoenix facility.

Free Lifetime Support

Talk to a real engineer, not a call center. We help anyone, customer or not.

Family Business, Engineering Excellence

Daniel Floreancig has been in the electric motor and phase converter field for 50+ years — he has rewound, redesigned, and innovated solutions from all over the world. His son Glen runs day-to-day operations as the solutions guy who gets it done when others can't.

We are here to help, customer or not. There are very few people in the industry with this level of experience. Not everything has to be replaced if it's not working, and not everything that is three-phase needs a phase converter. We enjoy what we do.

50+

Years Experience

100%

Made in USA

Life

Warranty

Applications

Industries We Power

From machine shops to agriculture, our phase converters run the equipment that builds America.

Machine Shops

CNC machines, milling machines, lathes, PLC's, EDM equipment

Woodworking

Belt sanders, table saws, milling equipment, dust collection systems

Agriculture

Assembly lines, ventilation fans, pumps, grain blenders and processing

Automotive

Car hoists, tire balancers, chain hoists, pressure washing systems

Food Processing

Hobart mixers, coffee roasters, commercial ovens, ice cream equipment

Welding

Heavy-duty welding operations, plasma cutting, metal fabrication

HVAC

Commercial heating and cooling systems, large ventilation equipment

Elevator/Lift

Commercial elevator motors, hydraulic lift systems, escalators

Stone & Granite

Bridge saws, stone cutting equipment, polishing machinery

Step 1 · Select Power

Choose Your Horsepower

Size your converter at least 2x your largest motor horsepower for optimal performance.

Step 2 · Configure

Build Your Machine

Add options to match your specific application. Each converter is hand-assembled to order.

NL SERIES

GP10NL

Rotary Phase Converter

$ 1,955

Free shipping · Most sizes

Upgrade Options

+P · Start/Stop Controls

Upgrades to PL series with integrated push-button station and motor contactor for manual on/off control.

+$244

+A · AutoLink™

Automatic start/stop via pressure switch. Ideal for compressor duty cycles — converter runs only when needed.

+$350

+AS · AutoStart Smart

Load-sensing technology automatically detects equipment startup and powers the converter on/off. Zero manual intervention.

+$2,378

+T · Step-Up Transformer

Integrated 230V → 460V step-up transformer for high-voltage three-phase equipment.

+$450

DualZone™ Pro

Two independent power zones for running different HP loads simultaneously. Like having two converters in one enclosure.

$5,980

Lifetime Warranty

Made in USA

800-417-6568

Speak with an engineer for custom configurations and volume pricing.

Specifications

Technical Details

Sizing Guide

Right-Size Your Converter

Proper sizing ensures optimal performance and motor longevity.

The 2x Rule

Always size your phase converter at LEAST 2x the horsepower of your largest motor. For hard-starting loads like compressors or CNC machines, you may need even more headroom for reliable operation.

Quick Reference

1-2 HP Motor → GP5 Converter

3 HP Motor → GP7 Converter

5 HP Motor → GP10 Converter

7 HP Motor → GP15 Converter

10 HP Motor → GP20 Converter

15+ HP Motor → Call for Sizing

How It Works

Single to Three-Phase Conversion

Our rotary phase converters create the missing third phase using precision-engineered idler motors and capacitors.

Single-Phase Input

Two conductors deliver power that pulsates — dropping to zero twice per cycle. This causes vibration and inefficient motor operation.

Phase Converter

Our rotary converter uses an idler motor and precision capacitors to generate the missing third phase, creating balanced three-phase power.

True Three-Phase Output

Three conductors each 120° apart deliver continuous power that never drops to zero. Smoother torque, greater efficiency, longer motor life.

Customer Stories

What Our Customers Say

Real reviews from machine shops, manufacturers, and fabricators across America.

★★★★★

"The Phase Converter was delivered fast! Easy to install thanks to Danny we were up and running our CNC Machine making parts!"

— Jacob T.

★★★★★

"What a difference from my older converter, this is a robust design like they said it was, I am very happy customer."

— Tim W.

★★★★★

"Everybody else said I didn't have enough power to run my equipment, when I called Phoenix they made it happen with their innovations! They really care about their customers!"

— Tad B.

Our Promise

Unmatched Guarantees

We stand behind every phase converter with industry-leading warranties and support.

Lifetime Warranty

Every component covered for life. No fine print, no questions asked. If it breaks, we fix or replace it.

90-Day Money Back

Not satisfied? Return it within 90 days for a full refund. We're confident you'll love your Phoenix converter.

Price Match + 10%

Find a better price? We'll beat it by 10%. We guarantee you won't find better pricing on the market.

Free Lifetime Support

Talk to a real engineer, not a call center. We help anyone — customer or not. That's just who we are.

Free Shipping

Free shipping on most converter sizes. Your precision-engineered power solution delivered to your door.

Made in USA

Hand-assembled and tested in Phoenix, Arizona. Supporting American manufacturing and American jobs.

FAQ

Common Questions

Get answers from our engineering team before you buy.

How much power does a phase converter consume when idle?

A rotary phase converter consumes approximately 25-30% of its rated HP when running idle. For example, a 10 HP converter uses about 2.5-3 HP when idling, which is minimal compared to the motors it powers.

Can I run multiple machines from one converter?

Yes! Size the converter to handle your total connected load. An NL series is perfect for this — it runs continuously and can power multiple machines as they cycle on and off.

Are Phoenix converters safe for CNC machines?

Absolutely. Our converters deliver 3-5% voltage balance across all three phases — often better than utility-supplied power. This precision is perfect for sensitive CNC and automation equipment.

What's the difference between rotary and static converters?

Static converters only help motors start — they don't provide true three-phase power during operation. Rotary converters like ours provide continuous, balanced three-phase power for optimal motor performance and longevity.

What else do I need to purchase besides the converter?

Our converters come complete and ready to install. You'll just need appropriate breakers and wire gauge as specified in our installation manual. We include all necessary documentation and support.

Product Videos

See Our Craftsmanship

Take a closer look at the engineering and construction behind every Phoenix phase converter.

TEFC Motor Construction

See how we build our Totally Enclosed Fan Cooled idler motors for maximum durability and performance.

ODP Motor Design

Learn about our Open Drip Proof motor configuration and when to choose it for your application.

NEMA 4 Enclosures

Weatherproof and washdown-rated enclosures for harsh industrial environments.

Ready to Power Your Equipment?

Speak with Daniel or Glen today. Get expert sizing advice, custom configurations, and answers to all your three-phase power questions.

Call 800-417-6568 Email Us Text 602-962-8859

Phoenix Phase Converters · Phoenix, Arizona
50+ years of electric motor and phase converter engineering excellence

Talk to a Phase Converter Engineer

📞 (800) 417-6568

Free sizing help • Lifetime warranty • Made in USA • Mon–Fri 7AM–5PM MST

Build Your Phase Converter

True BalancedThree-Phase Power

Lifetime Warranty

50+ Years Experience

Ships in 1–3 Days

Free Lifetime Support

Family Business, Engineering Excellence

Machine Shops

Woodworking

Agriculture

Automotive

Food Processing

Welding

HVAC

Elevator/Lift

Stone & Granite

The 2x Rule

Quick Reference

Single-Phase Input

Phase Converter

True Three-Phase Output

Lifetime Warranty

90-Day Money Back

Price Match + 10%

Free Lifetime Support

Free Shipping

Made in USA

TEFC Motor Construction

ODP Motor Design

NEMA 4 Enclosures

Ready to Power Your Equipment?

True Balanced
Three-Phase Power