5 hp VFD, 1 phase to 3 phase VFD

Cheap price 5hp variable frequency drive, single phase to three phase VFD, 208V-240V, 17amps, 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, 17 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 ±15%
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.

Download PDF, DOC...
PDF: GK3000 VFD User Manual
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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 Guest on 05/07, 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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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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Upsize the VFD
Hammer mill is a heavy duty load, we recommend a 7.5hp VFD, GK3000-2S0055
You can get it on: http://www.gohz.com/7-5-hp-vfd-single-phase-to-three-phase
By GoHz on 01/09, 2017
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