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


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Understanding Load Types for Equipment:
Simplifying with Categories
When it comes to powering equipment, understanding the type of load it presents is crucial for selecting the right phase converter, ensuring efficiency, and prolonging the life of both the converter and the machinery. Load types can vary widely, from simple tools to complex industrial machines, each with its own starting and running power requirements. To simplify this, we categorize loads into five main types: Easy Loads, Medium Loads, Hard Loads, Very Hard Loads, and Resistive Loads. These categories help in determining the right phase converter size, particularly important when considering a Rotary Phase Converter for your machinery.Load Categories Explained

Easy Loads
Easy Loads are characterized by their low inertia during startup, meaning they don't require a lot of energy to get moving. This category typically includes machinery that is more free-spinning and doesn't have a significant load when starting. Examples of Easy Loads are drill presses and milling machines. These machines start relatively easily because they don't have to overcome a lot of resistance or carry a heavy load when they begin to move.

Medium Loads
Medium Loads require a bit more energy to start compared to Easy Loads but still don't represent the highest demand on a phase converter. This category can include machines like lathes, which have some resistance due to their construction and the materials they work with, but once moving, they operate smoothly without excessive power demands.

Hard Loads
Hard Loads start to introduce a significant demand on the phase converter, requiring more power for startup due to higher inertia or resistance. Equipment such as air compressors fall into this category. They need a substantial amount of power to overcome the initial resistance and get the compressor moving.

Very Hard Loads
Very Hard Loads are among the most demanding on a phase converter, requiring a lot of power for both startup and continuous operation. An example of a Very Hard Load is a dust collector. These machines have a high startup inertia because they need to move a large volume of air from a stand still, which requires considerable energy.

Resistive Loads
Resistive Loads are a bit different from the other categories as they refer to loads that primarily use electrical resistance to operate, such as heaters and some types of lighting. These loads typically do not have moving parts and therefore do not have the startup inertia associated with mechanical equipment. However, they can still require significant power for operation.

Selecting a Rotary Phase Converter:To demonstrate how load types affect the choice of a phase converter, consider a 5 HP (Horsepower) Rotary Phase Converter. This size is capable of handling a variety of loads, but the specific capacity depends on the load type. When selecting a phase converter, it's important to consider not just the horsepower rating but also the type of load it will be supporting. The right phase converter will ensure that your equipment runs efficiently, with minimal wear and tear on both the converter and the machinery.

Understanding the different load types and categorizing your equipment accordingly is vital for selecting the appropriate phase converter. This knowledge helps in optimizing the performance of your machinery, ensuring efficient operation, and extending the lifespan of your equipment. Whether you're running a simple drill press or a heavy-duty dust collector, knowing the load type is the first step in powering your equipment effectively.

EASY LOAD3 HP Drill Press, Milling Machine, Saw Motors.
3 HP Mixer, Disc Sander, Band Saw, Meat Grinder, Compactor, Hoist.
2.5 HP Lathe, Wide Belt Sander, Brake, Shear, Hoist, Hydraulic Pump, Pumps, Granite Saw.
1.5 HP Air Compressor, Blower, Vacuums, Cryo Chamber.
2.5 HP Spindle Motor and all other small motors on the CNC Equipment.
RESISTIVE LOAD7.5 AMPS, Ovens, Welders, Battery Chargers, Transmitters.
A/C FREEZERS2 HP or 50 Locked Rotor Amps (LRA)
General Specifications Single Phase Specs      Three phase Specs                        Options 
HP 5Voltage Input230 VACVoltage Output230 VACStart and StopW/ Built-In ContactorNo, add-on available
KW 3.3Motor Load Breaker
Minimum Size
10Maximum Output
Inductive Load Amps
14Voltmeter DisplayYES
KVA 4.43Motor Load Breaker
Maximum Size
30Maximum Output
Resistive Amps
7AutoStart/AutoOffNo, add-on available
HZ 50/60Service Amps
Minimum Size
15Voltage Balancing+/- 2%Wireless Remote ON/OFFNo, add-on available
Panel EnclosureNEMA4
Single Phase Line
Input Wire Size
8Minimum Wire Size
10GPX Energy Monitor Cloud System ON/OFF and TimesNo, add-on available
Motor Cast Iron
Start and Stop
W/ Built-In Contactor

Largest Spindle
Motor Start
Frame184TLargest Compressor
Motor Start
Idler Weight110.25Total Combined
Horsepower Run
Electrical Panel Weight18 lbs
Enclosure Certifications UL 508A
(CSA C22.2No. 14-13.), TUV, CE
Panel ColorGray White(RAL7035)
Panel Dimensions 20 x 12 x 8
Panel Mounting Wall Mount


Our standard 5 HP Rotary Phase Converter has most of our competitors' upgrades.

Control Panel

Nema 4 Indoor/Outdoor Rate

At Phoenix Phase Converters we use the best components that last a lifetime. The 5 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.


Totally Enclosed Fan Cooled

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 5 HP rotary phase converter - GP5NL 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 Output
- 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.

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 5 HP rotary phase converter - GP5NL 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.

Drop element here

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 Phase Converter

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.

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.

ModelEasyMediumHardVery HardResistive AmpsKVACNC Spindle MotorPrice

Built with quality and precision like no other.

At Phoenix Phase Converters we use custom made components that last a lifetime. The 5 HP rotary phase converter - GP5NL 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 Rated 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.

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