What size phase converter do I need for my equipment?

Match the converter HP rating to the largest single motor you need to run. If running multiple machines simultaneously, size for the largest motor plus 50% of the additional motors' combined HP. For CNC machines with high inrush currents, we recommend sizing the converter at 2x the spindle motor HP. Call (800) 417-6568 for free sizing help from our engineers.

Can I run multiple three-phase machines from one phase converter?

Yes. One of the biggest advantages of a rotary phase converter is the ability to run multiple three-phase machines simultaneously. Connect the converter output to a three-phase sub-panel and run individual circuits to each machine. Size the converter for the largest motor plus 50% of all other motors running at the same time.

What is the warranty on Phoenix Phase Converters?

Every Phoenix Phase Converter comes with a lifetime warranty covering the control panel and all panel-mounted components for the life of the original owner. The generator motor carries comprehensive warranty coverage as well. We also provide free lifetime technical support — call (800) 417-6568 anytime.

Can this phase converter be installed outdoors?

Yes. All Phoenix Phase Converters use sealed NEMA-rated enclosures suitable for indoor or outdoor installation. The NL series uses NEMA 3R enclosures and the PL series uses NEMA 4 enclosures rated for harsh outdoor environments including dust, water jets, and extreme temperatures. Many customers install them in barns, outdoor shops, and agricultural settings.

How do I install a rotary phase converter?

Installation is straightforward for a licensed electrician: (1) Mount the converter near your panel, (2) Install the specified breaker size, (3) Run appropriately sized wire to the T1 and T2 input terminals, (4) Connect three-phase output to your equipment or sub-panel, (5) Power on and verify balanced voltage. Each converter includes a detailed installation manual with wiring diagrams. Call (800) 417-6568 for free installation support.

What is the difference between NL and PL series phase converters?

The NL series features digital smart controls with automatic voltage regulation and NEMA 3R enclosures for standard indoor/outdoor use. The PL series adds a built-in LED power monitoring panel with real-time status indicators for power, phase balance, and fault conditions, plus a heavier-duty NEMA 4 enclosure rated for harsh environments. Both series offer the same power quality and lifetime warranty.

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MODELS

All model include the Standard features with Phoenix Phase Converters

NEMA 4 Electrical Converter Panel INDOOR/OUTDOOR Rated
TEFC - Totally Enclosed Fan Cooled - Cast Iron Idler Motor INDOOR/OUTDOOR Rated
Digital Voltage Monitor
Precision Balance Voltage - CNC Rated

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5 HP Rotary Phase Converter - GP5NL Single Phase to Three Phase Converter

Includes Auto Restart against Power Failure

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Built in Magnetic Starter with Start and Stop Button
Digitally Protected.

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Includes Auto Restart against Power Failures
Intergrated AutoLink, for safe and convenient way to cennect to HVAC Systems, Compressors, Transformers, or pair to another phase converter.

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Most Efficient and Power Saving
Built in AutoLink
Includes a E-Stop Button and Manual Start Button.
Digitally Protected.

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Digital Voltage Monitor
Cloud intergrated Controls from any Laptop or Smart Mobile Device.
Start and Stop Timer Controls for 365 days a year
Voltage and Power Factor Monitoring, predict avoid costly repairs to your equipment.

^{Control Panel}

At Phoenix Phase Converters we use the best components that last a lifetime. The GP25NL - 25 HP rotary phase converter is sealed from any outside environment and is made to be used in a metal shop, woodshop, and outdoors. In addition, the phase converter is designed to be utilized in cold or hot weather. An intuitive standard voltage meter display to monitor your generated phase. The rotary phase converter is engineered with a NEMA 4 enclosure to ensure it is durable in a variety of commercial environments.

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Generator/Idler

Standard Feature TEFC (Totally Enclosed Fan Cooled) Generator and Cast Iron Frame. Our Highly Reliable Motors: At Phoenix Phase Converters we use the best components that last a lifetime. The 25 HP rotary phase converter - GP25NL single phase to three phase converter features a totally enclosed fan cooled and castiron frame motor. It is sealed from any outside environment and is made to be used in a metal shop, woodshop, andoutdoors. The phase converter is designed to be utilized in cold or hot weather. Watch the video below to learn more.

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More on what makes TEFC different then ODP.

LOAD TYPE	EQUIPMENT TO USE ON BUT NOT LIMITED TO
EASY LOAD	20 HP Drill Press, Milling Machine, Saw Motors.
MEDIUM LOAD	15 HP Mixer, Disc Sander, Band Saw, Meat Grinder, Compactor, Hoist.
HARD LOAD	10 HP Lathe, Wide Belt Sander, Brake, Shear, Hoist, Hydraulic Pump, Pumps, Granite Saw.
VERY HARD	7.5 HP Air Compressor, Blower, Vacuums, Cryo Chamber.
CNC SPINDLE	10 HP Spindle Motor and all other small motors on the CNC Equipment.
RESISITIVE LOAD	30 AMPS, Ovens, Welders, Battery Chargers, Transmitters.
A/C FREEZERS	10 HP or 162 Locked Rotor Amps (LRA)

General Specifications		Single Phase Specs		Three phase Specs		Options
HP	25	Voltage Input	230 VAC	Voltage Output	230 VAC	Start and StopW/ Built-In Contactor	No, add-on available
KW	18.6	Motor Load Breaker Minimum Size	60	Maximum Output Inductive Load Amps	65	Voltmeter Display	YES
KVA	27.02	Motor Load Breaker Maximum Size	120	Maximum Output Resistive Amps	35	AutoStart/AutoOff	No, add-on available
HZ	50/60	Service Amps Minimum Size	150	Voltage Balancing	+/- 2%	Wireless Remote ON/OFF	No, add-on available
Panel Enclosure	NEMA4 Indoor/Outdoor Hinged	Single Phase Line Input Wire Size	2	Minimum Wire Size Idler/Generator	4	GPX Energy Monitor Cloud System ON/OFF and Times	No, add-on available
Motor	Cast Iron TEFC	Start and Stop W/ Built-In Contactor	No	Largest Spindle Motor Start	12.5
Frame	284T			Largest Compressor Motor Start	10
Idler Weight	330			Total Combined Horsepower Run	25
Electrical Panel Weight	40 lbs
Enclosure Certifications	UL 508A (CSA C22.2No. 14-13.), TUV, CE
Panel Color	Gray White(RAL7035)
Panel Dimensions	20 x 12 x 10
Panel Mounting	Wall Mount

^{THE MOST ROBUST AND RELIABLE PHASE CONVERTER ON THE MARKET}

Control Panel

Nema 4 Indoor/Outdoor Rate

At Phoenix Phase Converters we use the best components that last a lifetime. The 25 HP rotary phase converter - It is sealed from any outside environment and is made to be used in a metal shop, woodshop, and outdoors. In addition, the phase converter is designed to be utilized in cold or hot weather. An intuitive standard voltage meter display to monitor your generated phase.The rotary phase converter is engineered with a NEMA 4 enclosure to ensure it is durable in a variety of commercial environments.

Generator/Idler

Totally Enclosed Fan Cooled

Standard Feature - TEFC (Toatlly Enclosed Fan Cooled Generator and Cast Iron Frame.
Our Highly Reliable Motors. At Phoenix Phase Converters we use the best components that last a lifetime. The 25 HP rotary phase converter - GP25NL single phase to three phase converter features a totally enclosed fan cooled and cast iron frame motor. It is sealed from any outside environment and is made to be used in a metal shop, woodshop, and outdoors. In addition, the phase converter is designed to be utilized in cold or hot weather. Watch this video to learn more. (video link)

Optional Features

Most Advanced Useful Features

- Wireless Remotes
- Start and Stop Button with built-in Contactor
- Programmable Timer ON/OFF
- Load Detection OFF
- Load Detection Auto Start and OFF
- AutoLink Box to Transformer 460 Volts
- AutoLink Box to Pair to another Phase Converter
- Wifi or Cloud-Based Energy Phase Meter Includes Timer, Cloud-Base ON/OFF, Voltage Meter, KW per hour, and Cost. Starts at 25 HP and above sizes.

Stock in 12 Warehouses

We have 12 warehouses across the USA, so you can get it FAST! Phoenix Phase Converters can get your phase converter from one of our warehouses to your door, residential or business address as fast as Next Day in most cases!

Our Customers Come Back

We guarantee here at Phoenix Phase Converters, you will always talk to a highly experience sales and tech support customer care, we are always available, and can answer any questions for you any time of the day or week.

Highest Standards - Quality

Two generations of hands-on experience. The 25 HP rotary phase converter - GP25NL features oversized components, cast iron frames, and totally enclosed fan cooled idler/generators. Built from years of customer real-world experiences, to last a lifetime of a maintenance free phase converter.

Autostart

Patented Technology.

Phase Converter will Automatically Start when a load is detected, Factory Settings is set to 20 minutes after to shut down by itself when the load is gone, this works great for CNC machines, Air Compressor, A/C units, irrigation, and pumps, ect.

GPX Series

Cloud Based Controls via WIFI

GPX Series will allow for you to have total control of the phase converter with built in timers to turn the phase converter on and off with a 7 day scheduling, and 24 hour time setting. Also with a built-in energy monitor for the converter and everything connected to it. You can even control and monitor it from any device connected to the internet from anywhere in the world.

460V Output

230v Single Phase Input - 460V Three phase Output

Single Phase 230 Volts input with 230 volts and 460 volts output, some equipment are only set to run on 460 volts 3 phase, while other machines can run on 230 volts 3 phase. this will allow you to use both even at the same time. 208 volt output also available. Ask about our LinkBox.

Sizing Guide Call Our Team for help Sizing 800-417-6568

Click here to download the DataSheets

Model	Easy	Medium	Hard	Very Hard	Resistive Amps	KVA	CNC Spindle Motor	Price
GP3	2.5	2	1.5	1	4	1.6	1.5	$624.36
GP5	3	3	2	1.5	7	2.9	2.5	789.51
GP7	7	5	3	2.5	11	4.5	3.5	1085.00
GP10	8	5	5	3	15	6	5	1599.18
GP15	10	8	7.5	5	20	8	7.5	2057.23
GP20	15	12	10	7.5	25	11	10	2647.18
GP25	20	15	12	10	30	13	10	2963.43
GP30	25	20	15	10	37	15	15	3481.17
GP40	30	25	20	15	50	21	20	4210.30
GP50	40	30	25	20	61	25	25	5485.79
GP60	50	40	30	25	72	30	30	6883.34
GP75	60	50	40	30	100	29.6	35	8074.28
GP100	75	60	50	40	122	37.3	50	10465.37
GP120	100	75	60	50	148	60	60	13254.34
GP150	125	100	70	60	162	72	70	16140.23

Built with quality and precision like no other.

At Phoenix Phase Converters we use custom made components that last a lifetime. The 25 HP rotary phase converter - GP25NL single phase to three phase converter with an oversized distribution block (the Start and Stop button with built-in contactor is optional).

Protect your investment

All Phoenix Phase Converter come with a NEMA 4 IP66 Enclosure, keep water, dust, oil out, works perfect for outdoors or indoors, especially great for wood working, metal working shops, or any dirty environments

Standard Features

See why TEFC vs ODP is better, the choice is easy.

Model	GP25NL
Total Running HP	25 HP
Largest Starting Motor	12.5 HP
Service Size	37.5 kVA (150A)
Breaker Size	60 MIN – 120 MAX
Single Phase Wire Size	2 AWG (under 50 ft)
Idler Motor Wire Size	4 AWG
Idler Motor	330.75 lbs — 284T NEMA Frame
Electrical Panel	40 lbs — 20" × 12" × 10"

Convertidor rotatorio de fase de 25 HP - Convertidor monofásico a trifásico GP25NL

📦 What's Included

Why the GP25NL Phase Converter

IP65 Weatherproof Control Panel

Heavy-Duty TEFC Idler Motor

🏗️ Common Applications for 25 HP Phase Converters

🎥 See It In Action

Helpful guides