5 hp VFD, 1 phase to 3 phase VFD

Cheap price 5hp variable frequency drive, single phase to three phase VFD, 208V-240V, 17 amps, RS485 enabled, manufacturer direct sale.
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Delivery date: 6 - 12 Days

Single phase 5 hp VFD, single phase 220V to three phase variable frequency drive, 19.2 amps. Using it as a phase converter to convert 1-phase 220v (230v, 240v) home power supply to drive 3-phase motors.


Basics Model GK3000-2S0037
Capacity 5 hp (3.7 kW)
Shipping weight 4 kg
Dimension 184*98*135 mm
I/O Feature Rated current 17 A
Input voltage 1 phase 220~240V AC
Input frequency 50Hz/ 60Hz
Output voltage 3 phase AC 0~input voltage
Output frequency 0.00~400.00Hz
Over load capacity 150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature Control mode V/F control;
Sensorless vector control;
Communication RS485
Speed regulation 1:100
Start torque 150% of rating torque at 1 Hz
Speed control accuracy ≤±0.5% of rating synchronous speed
Frequency precision Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
Frequency resolution Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
Torque boost Automatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controller Be convenient to make closed-loop system
Automatic energy save running Optimize V/F curve automatically based on the load to realize power save running
Automatic voltage regulation (AVR) Can keep constant output voltage when power source voltage varies.
Automatic current limiting Limit running current automatically to avoid frequent over-current which will cause trip
Environment Enclosure rating IP 20
Temperature –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
Humidity 5%-95%, without condensation
Altitude ≤1000m; VFD will be derated if above 1000m
Impingement and oscillation Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight


Tips: Do I need a VFD?
First question is about load speed / torque profile. If load need large speed variation, variable frequency drive (VFD) come with significant energy saving, if not, may be difficult to sustain VFD cost/ investment. First candidates to VFD are pump / fan systems. VFDs do provide some advantages, but there are also some disadvantages as well, like harmonics injection, motor insulation premature fails, cable reflection for lengths more than 10m. These issues must be controlled / put in balance. So, there are not advantages only by using a VFD.

For sure VFDs are big energy enablers. Yet official data announced that only 10 to 20% of motors are equipped worldwide. And even with new motor classes, we will not reach the same level of savings. The trend is now motor being embedded intelligence for energy savings, this push VFD manufacturers enhance the saving rates of the VFD. Finally, people and earth will benefit of their capabilities.

For the area where there is only single phase power supply available but you have three phase plant, in case of less than 5 HP, by far the most efficient and easy way to convert single phase to three phase are the variable frequency drives out that can be equipped with single phase front ends, and provide variable frequency three phase power. I have one 5hp VFD on my water pump and could not be happier, not just for the ability to use a three phase motor, but also soft start, dynamic breaking, speed control, and direction control.

Write your own review for 5 hp VFD, 1 phase to 3 phase VFD
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Existing reviews

Works great - reliable.
I've purchased and installed 12 of these so far, the first being around three years ago and the most recent one was this month. These are being used to control blower motor speed for industrial towable portable heaters. As such, they're run 24/7 and are powered by a single phase 7KW generator.
Original factory installed VFD on these machines is no longer available, so I tried one of these as a replacement. Operation and reliability has exceeded expectations - especially at this price point.
By Scott on 09/12, 2022
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I am wondering which is the ground terminal for the 220V input. I see the ground for the 3 phase output E but no E for the input. The terminals order is:
PB R S T P+ P- U V W E
By luke on 05/05, 2021
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Will this power a CNC
I purchased one of the 5HP VFD's intending to power another machine, but recently acquired a 5HP spindle CNC.  I've been looking at rotary phase converters, but thought maybe this VFD would power the entire CNC.

I could rewire the CNC to have the VFD power only the motor, but would prefer to have the VFD power the entire system, would this work?  Are there additional considerations?
By William on 10/10, 2020
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Input Amperage
What is the input amperage of this VFD with a 208VAC 60Hz feed?
By Nick on 29/06, 2020
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External Wireless start Stop Control
Hi Steve, The VFD can be controlled start/stop via terminals FWD & COM, as long as the external wireless switch transfers signal to the VFD, it's ok.
By GoHz.com on 16/11, 2018
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External Wireless start Stop Control
Is it possible to use a wireless external start-stop control with this VFD? If so what would be the needed switch requirements and what would be the terminal connections? Would like to operate a dust collector from a wireless remote control.


By Steve on 16/11, 2018
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Does this VFD do phase conversion?
Yes, this 5 hp VFD can convert single phase 220v input to three phase output, to drive your 3kW motor.
By GoHz.com on 04/05, 2018
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Does this VFD do phase conversion?
I have a 60Hz 3KW 220V 1170RPM 3 phase electric motor that's supposed to drive a device in my shop. I have a 220V single phase power. Does this VFD do phase conversion from 3 to single?  Can it take single phase Input voltage @ 220V and they supply balanced 3 phase to my motor?
By Nathan on 04/05, 2018
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5hp VFD
Yes, that is right. Please connect ground wire to E terminal.
By GoHz.com on 27/04, 2018
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5hp VFD
I am received this 5hp VFD, and have a question for wiring from 220 V 1 ph to the 220 V 3 ph output.  Where do I ground this? What terminal? Is that what the “E” terminal?
By Tim on 27/04, 2018
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Replacing existing VFD
Hello Scott, Yes, GoHz VFD will be a great replacement of your existing VFD. Output frequency is vary from 0Hz to 400Hz, you can control the motor on/off by sending the signal from the temperature sensor to GoHz VFD, contact us for more information.
By GoHz.com on 10/04, 2018
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Replacing existing VFD
Good morning,
We have some jobsite heaters with an onboard 7KW diesel genset providing 240VAC single phase power to a heating unit with a 5HP three phase motor via a VFD. The VFD is used to provide soft-starting for the heater's blower motor and is also used to select 38HZ, 48HZ, or 58HZ frequency output for blower motor speed control.
The blower motor VFD is triggered by a temperature sensor on the heater housing to turn the motor on once a certain temperature is reached and then to turn the motor off again when the heater burner is turned off and the heater enclosure cools down to a certain temperature.
The heating unit is equipped with a rotary three detent speed control switch to select from the 38, 48, or 58HZ motor speeds.
For comparison's sake the VFD currently being used is an AC Lenze model Y250S.
Thank you.
By Scott on 09/04, 2018
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VFD for 5hp high pressure pump
Yes, you can use this 5HP single phase to three phase VFD to drive the pump.
By GoHz.com on 03/01, 2018
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Does 5hp pump require 7.5hp VFD
we will be running a 5hp high pressure pump for a reverse osmosis on a 220V single phase input.  Will a 5hp VFD be sufficient or do we need to bump up to a 7.5?
By Neil on 30/12, 2017
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Upsize the VFD
Hammer mill is a heavy duty load, we recommend a 7.5hp VFD, GK3000-2S0055
You can get it on: https://www.gohz.com/7-5-hp-vfd-single-phase-to-three-phase
By GoHz on 01/09, 2017
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vfd for hammer mill
I realize that you have a 5hp VFD Mod# GK3000-2S0037;
Is this drive fully capable to operate a three phase 220 Volts; 60 Hz; 5 HP motor driving a hammer mill. The mill is to be connected to a Single Phase 220 volts 50 Hz Supply.

Would I need a bigger capacity vfd (say 10 Hp) for this application?

Please advise on the best option for this application.
By Johan on 01/09, 2017
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Customized VFDs
Generally, the capacity for VFDs in single phase input is 3 hp for small motors, just as you saw in the user manual.

This model is customized by a three phase input VFD to work for single phase input, which is absolutely worked for 5hp 3ph 240v motors.

GoHz can even customize a 10hp or 20hp VFD with single phase input to do the phase conversion job.
By GoHz.com on 05/07, 2017
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Phase conversion for 5hp motor
We are interested in the GK3000-2S0037G model VFD. Our application requires a typical 240V single phase connection for the input and three phase output of 240V to a 5 HP motor. I was looking in the manual and it indicated on page 21 that single phase is only applied to motors up to 3 hp (2.2 kW). Can you confirm that as indicated that the phase conversion will work for a 5HP motor, and if so what would the input connections look like as they apply to page 21 in the manual.
By Colin on 05/07, 2017
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