General purpose VFD prices are mainly determined by rated current, voltage and control capability. A basic drive for a fan or pump may cost less than a drive selected for a conveyor, CNC machine or other load that needs stronger low speed torque.
The correct comparison begins with the motor nameplate and the application. A price alone does not show whether the drive can handle the starting torque, overload demand or power supply at the installation site.
Current General Purpose VFD Price Reference
Selected mini VFD products currently listed on vfdinverters.com show these online price references.
| Rated Power | Current Online Price Reference | Typical Use |
| 2.2kW | About US$39 to US$42 | Small pumps, fans and light machinery |
| 4kW | About US$49 | Pumps, conveyors and workshop equipment |
| 5.5kW | About US$66 | Industrial machinery and motor control |
| 7.5kW | About US$69 to US$169 | Higher current or different voltage configurations |
The range between similar power ratings usually reflects differences in voltage, input phase, rated current, model configuration or product listing. Request the full specification before comparing two prices.
Main VFD Cost Factors
Rated Output Current
Motor power gives an initial reference, but the VFD output current must meet or exceed the motor’s requirements. A drive selected only by kilowatts may trip or overheat if the motor current is higher than expected.
When the load is heavy, starts frequently or operates for long periods at low speed, the supplier should review the duty cycle as well as the nameplate current.
Supply Voltage and Phase
Common industrial configurations include 220V and 380V classes. Some smaller drives accept single phase input and provide three phase output. Other models require three phase input.
Confirm the actual site supply before ordering. A 220V drive cannot replace a 380V drive simply because the power rating is the same.
V F Control and Vector Control
V F control is widely used for fans, pumps and applications with moderate speed control requirements. Vector control provides stronger low frequency torque and improved speed response for many industrial machines.
The required performance should guide the choice. Paying for an advanced control function is unnecessary when a simple fan application does not need it, but selecting a basic drive for a demanding load can cause poor operation.
Braking and Communication
Rapid deceleration and high inertia loads may require a braking resistor or braking unit. PLC integration may require RS485 or another communication interface. Check whether these functions are built in or supplied as accessories.
Applications for a General Purpose VFD
General purpose drives are commonly used in textile machinery, metal processing, woodworking, paper making, printing, petroleum equipment, plastics machinery and CNC systems. They are also used for pumps, fans and conveyors.
Each load behaves differently. Fans and centrifugal pumps usually have a lighter starting demand. Conveyors and processing machines may require higher starting torque. Machines that stop quickly may generate regenerative energy that must be managed through the selected braking arrangement.
How to Compare VFD Quotations
Ask each supplier to state:
- Complete model number
- Input voltage and phase
- Output voltage and current
- Normal duty or heavy duty rating
- Control method
- Built in communication
- Braking support
- Included keypad and accessories
- Warranty and technical support
- Unit price and quantity basis
This checklist makes quotations easier to compare and exposes missing functions before the order is placed.
Sample Orders and Wholesale Orders
A sample order is useful when a distributor or machine builder needs to test motor compatibility, wiring and parameters. Wholesale pricing normally depends on the model mix, quantity, packaging and OEM requirements.
For a useful sample test, reproduce the real load as closely as possible. Running an unloaded motor on a workbench does not confirm how the VFD will perform on a loaded conveyor, spindle or machine.
Avoiding Common Selection Errors
Do not select a VFD from motor power alone. Do not assume every drive accepts single phase input. Do not omit ambient temperature, altitude or enclosure conditions when they are severe.
Also confirm the motor type. A standard three phase induction motor and a permanent magnet motor may require different control support.
Frequently Asked Questions
What is the price of a 2.2kW VFD
Selected 2.2kW mini VFD listings on vfdinverters.com are currently around US$39 to US$42. The final price depends on voltage, rated current, order quantity and configuration.
Can one VFD control several motors
It can be possible when the system is designed correctly, but each motor needs suitable protection and the VFD must be sized for the combined load. Independent motor speed control is not available when several motors share one VFD output.
Does a VFD reduce energy consumption
A VFD can reduce energy use when a variable torque load such as a fan or centrifugal pump does not need to run at full speed. Savings depend on the operating profile and system design.
What should I send for model selection
Send the motor nameplate, supply voltage, load type, operating speed range, quantity and destination country.
Request a General Purpose VFD Quotation
Browse IDEEI general drive products or send your motor details for model selection and pricing.
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