Description
Great Oak Curated Industrial Equipment:
Part of our industrial collection, selected for durability and performance.
Features & Details
- Powerful Function: This variable frequency drive accepts 1- or 3-phase input and delivers 3-phase output. Control modes include V/F control and vector control. Frequency setting options: digital, analog, serial communication (RS485 port, compliant with standard international MODBUS protocol for main circuit control), PID control (advanced calculus-based closed-loop arithmetic, rapid response, and high suitability). Multiple control techniques, both synchronized and non-synchronized, enable fast start-up without changing brakes. High torque under heavy load, delivering full torque at 1Hz.
- Low-Noise Operation: The phase converter features low noise and low electromagnetic interference through optimization of PWM control technology and electromagnetic compatibility in the overall design. Sufficient spacing between electronic components ensures effective heat dissipation, and the shell incorporates porous heat dissipation, extending service life.
- Smart Digital Display: The VFD features a user-friendly keyboard layout with intuitive, clear digital display. The detachable design facilitates remote operation.
- Multiple Protection: We employ various protective measures to ensure the stable and reliable operation of the CNC variable frequency drive inverter. These include overload protection, fuse protection, over-voltage (DC voltage > 400V), and under-voltage (DC voltage < 300V).
- Versatile Use: Suitable for spindle motors, CNC engraving machines, CNC milling machines, CNC machine tools, milling machines, drilling machines, trimming machines, mixers, extruders, slitting machines, rewinders, compressors, ventilators, pumps, grinders, and conveyors.
- Speed regulators compatible with elevators (excluding passenger elevators), centrifuges, and similar equipment.
Technical Specifications
| Model | H100-3S2-1B |
|---|---|
| Power | 3 kW |
| Input Voltage | 220V |
| Output Voltage | 0-220V |
| Input Current | 0-14A |
| Output Current | 0-14A |
| Input Phase | 1 or 3 Phase |
| Output Phase | 3 Phase |
| Input Frequency | 50/60 Hz |
| Output Frequency | 0-1000 Hz |
| Horsepower | 4 HP |
| Working Temperature | 23~104℉/-5 ~ 40 ℃ |
| Humidity | 0-90% Relative Humidity (without dew) |
| Vibration | Below 0.5 G |
| Net Weight | 2.43 lbs / 1.1 kg |
| Product Size | 5.9 x 3.54 x 4.6 in / 150 x 90 x 118 mm |
Detailed Overview


3 KW Variable Frequency Drive
Stable Performance & Digital Display & Mute Operation
This VFD converter can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc.). In addition, it can be used as a motor speed control and a phase converter. The input for this VFD is 1 or 3 phase, and the output is 3 phase. You can control the different speeds you like when you use this VFD. This item uses Sine wave PWN(SVPWM) for the control system and performance excellently. It also has passed CE certification.
- Powerful Function
- Low-Noise Operation
- Smart Digital Display
- Multiple Protection
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service

Unique Control Method
This VFD uses a unique control method to achieve the high moment of force, high precision, and wide speed regulating range driving. It can realize functions like up to 8/16-segment speed control, a program running, 4-segment acceleration/deceleration switching, etc.

High-Quality Material
The case of CNC VFD is made of ABS flame retardant material which features strong crash-proof capabilities, good flame retardancy with a non-corrosive coating. In addition, it has good tripping prevent performance and the ability to adapt to rough power, temperature, humidity, and dust interference, greatly improved stability. The capacitor can withstand temperatures up to 105℃, higher than ordinary ones (80℃).

High Air Volume
The VFD drive is equipped with fan cooling and a built-in radiator. It has an efficient heat dissipation ability, ensuring a suitable temperature inside the VFD. In addition, the independent air duct is designed for electrical and contaminant isolation, allowing the product to be used in harsh environments.

Smart Digital Display
After the panel is disassembled, it can be connected to the corresponding interface to achieve remote control. Reasonable layout and intuitive & clear digital display increase the convenience of daily use.

Multiple Protection
Many protection ways are adopted to ensure the stable and reliable operation of the CNC variable frequency drive inverter, like overload protection, fuse protection, over-voltage or under-voltage protection, etc.

Wide Application
The variable frequency drives are applied in machinery winding machines, mixer, extruder, slitter, winder, compressor, ventilator, pump, grinder, elevator, and other speed control machines.

Specifications
- Model: H100-3S2-1B
- Power: 3 kW
- Input Voltage: 220V
- Output Voltage: 0-220V
- Input Current: 0-14A
- Output Current: 0-14A
- Input Phase: 1 or 3 Phase
- Output Phase: 3 Phase
- Input Frequency: 50/60 Hz
- Output Frequency: 0-1000 Hz
- Horsepower: 4 HP
- Working Temperature: 23~104℉/-5 ~ 40 ℃
- Humidity: 0-90% Relative Humidity (without dew)
- Vibration: Below 0.5 G
- Net Weight: 2.43 lbs / 1.1 kg
- Product Size: 5.9 x 3.54 x 4.6 in / 150 x 90 x 118 mm

Package Content
- 1 x 3 KW Variable Frequency Drive Inverter
- 1 x English Manual
- 1 x Extension Wire

VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service
VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.
Why Choose VEVOR?
- Premium Tough Quality
- Incredibly Low Prices
- Fast & Secure Delivery
- 30-Day Free Returns
- 24/7 Attentive Service

3 KW Variable Frequency Drive
Stable Performance & Digital Display & Mute Operation
This VFD converter can be used for constant torque loads (such as hard starting: Air compressors, HVAC units) and variable torque loads (such as pumps, fans, etc.). In addition, it can be used as a motor speed control and a phase converter. The input for this VFD is 1 or 3 phase, and the output is 3 phase. You can control the different speeds you like when you use this VFD. This item uses Sine wave PWN(SVPWM) for the control system and performance excellently. It also has passed CE certification.
- Powerful Function
- Low-Noise Operation
- Smart Digital Display
- Multiple Protection

Unique Control Method
This VFD uses a unique control method to achieve the high moment of force, high precision, and wide speed regulating range driving. It can realize functions like up to 8/16-segment speed control, a program running, 4-segment acceleration/deceleration switching, etc.

High-Quality Material
The case of CNC VFD is made of ABS flame retardant material which features strong crash-proof capabilities, good flame retardancy with a non-corrosive coating. In addition, it has good tripping prevent performance and the ability to adapt to rough power, temperature, humidity, and dust interference, greatly improved stability. The capacitor can withstand temperatures up to 105℃, higher than ordinary ones (80℃).

High Air Volume
The VFD drive is equipped with fan cooling and a built-in radiator. It has an efficient heat dissipation ability, ensuring a suitable temperature inside the VFD. In addition, the independent air duct is designed for electrical and contaminant isolation, allowing the product to be used in harsh environments.

Smart Digital Display
After the panel is disassembled, it can be connected to the corresponding interface to achieve remote control. Reasonable layout and intuitive & clear digital display increase the convenience of daily use.

Multiple Protection
Many protection ways are adopted to ensure the stable and reliable operation of the CNC variable frequency drive inverter, like overload protection, fuse protection, over-voltage or under-voltage protection, etc.

Wide Application
The variable frequency drives are applied in machinery winding machines, mixer, extruder, slitter, winder, compressor, ventilator, pump, grinder, elevator, and other speed control machines.

Package Content
- 1 x 3 KW Variable Frequency Drive Inverter
- 1 x English Manual
- 1 x Extension Wire

Specifications
- Model: H100-3S2-1B
- Power: 3 kW
- Input Voltage: 220V
- Output Voltage: 0-220V
- Input Current: 0-14A
- Output Current: 0-14A
- Input Phase: 1 or 3 Phase
- Output Phase: 3 Phase
- Input Frequency: 50/60 Hz
- Output Frequency: 0-1000 Hz
- Horsepower: 4 HP
- Working Temperature: 23~104℉/-5 ~ 40 ℃
- Humidity: 0-90% Relative Humidity (without dew)
- Vibration: Below 0.5 G
- Net Weight: 2.43 lbs / 1.1 kg
- Product Size: 5.9 x 3.54 x 4.6 in / 150 x 90 x 118 mm
Note: Great Oak specializes in sourcing high-performance industrial tools. Manufactured by VEVOR.

























Verified Customer –
Fast shipping. Great price. Excellent product. Highly recommended. Will definitely buy again.***************
Verified Customer –
I am running mine at 241 volts. Since this is Chinese and designed for 220 volts I was a bit nervous but it seems to handle the higher US voltage at 60 Hertz just fine. The instructions were written by someone who doesn’t know English but I’m okay with that.
Verified Customer –
I chose to add remote forward, reverse, speed (potentiometer) and e-stop controls and the process was very easily done. Manual is all you need and if it isn’t customer service will walk you through. I can’t comment on longevity but it is powering a 3 phase motor on a lathe smoothly.
Verified Customer –
I must admit, at first I was a little skeptical. Was pleasantly surprised at how well it works and the ease of setup and control. Pretty good instructions. Good quality. Great price!
Verified Customer –
Good quality, features and cost.
Verified Customer –
These are great for converting 3-phase motors to single-phase, with full speed control and reverse. Just put 2 on a radial-arm drill press, replacing the old contactor box.
Verified Customer –
Put two of these on an older radial-arm drill press with 3-phase motor in a single-phase shop. The full variable speed is far superior to the original few selections. Reverse is just a touch of a button. No worries about contactor problems. I have these on my lathe and air compressor and have installed them for friends. 100% satisfaction over several years.
Verified Customer –
So far, it’s working perfectly as a single phase 220VAC to 3 phase 240 on an old 1HP southbend lathe for a couple of weeks. My motor is probably drawing upto sbout 1kw, but I havent checked since this VFD is rated much higher. Havent got it fully set up yet, but the manuel is decent and reasonably written, but could be improved.
Based on the succcess of this experience, planing to purchase all 3 phase motors and drive them by VFDs in the future. I already have 8 more on order.
Clearly, Im counting on the long term durability to be solid.
I also like this unit because the DC bus is accessible in the drive and I plan to test it running straight off 380VDC. If successfull, will likely wire everything to run 380VDC directly off of solar assuming I can find a charge controller to regulate a high voltage battery pack.
Verified Customer –
I haven’t used this extensively yet, but it’s converting a 3 phase 5 horse table saw motor to single phase 240v and doing an awesome job. I wired a paddle switch for easier operation from Powertec and love it! I set up a soft start and electric blade brake, all were super easy to set up.
Verified Customer –
Used this VFd to power my Bridgeport knee mill, works very well. Only complaint not enough spacing between lugs to be able to use ring eye terminals on ends of wires. I am installing this VFD on my belt grinder and just ordered the 5 hp VFD to power my knee mill.