# Hars

> Hars is a professional leader China VFD manufacturer with high quality and reasonable price. Welcome to contact us.

## Contact Us
- [Mail](mailto:sales@vfdspread.com): sales@vfdspread.com
- [Tel](tel:+86-0510-68220580): +86-0510-68220580
- [Phone](tel:+8615861598173): +8615861598173

## Social Media
- [Facebook](https://www.facebook.com/)
- [Linkedin](https://www.linkedin.com/)
- [Twitter](https://twitter.com)
- [Youtube](https://www.youtube.com/)

## Website Language Versions
- [English](https://www.hars-vfd.com): VFD Manufacturer & Supplier - Hars

## Website Navigation
- [VFD](https://www.hars-vfd.com/variable-frequency-drive.html): VFD
    - [VFD-HS320 Series](https://www.hars-vfd.com/vfd-HS320-series.html): VFD-HS320 Series
    - [VFD-HS800SF Series](https://www.hars-vfd.com/vfd-HS800SF-series.html): VFD-HS800SF Series
    - [VFD-HS800A Series](https://www.hars-vfd.com/vfd-HS800A-series.html): VFD-HS800A Series
    - [VFD-HS930A](https://www.hars-vfd.com/vfd-hs930a.html): VFD-HS930A
    - [VFD-HS720 Series](https://www.hars-vfd.com/vfd-HS720-series.html): VFD-HS720 Series
    - [VFD-HS720H Series](https://www.hars-vfd.com/VFD-HS720H-Series-pl47981286.html): VFD-HS720H Series
    - [VFD-HS320Pro](https://www.hars-vfd.com/vfd-hs320pro.html): VFD-HS320Pro
    - [VFD-HS310 Series](https://www.hars-vfd.com/vfd-hs310-series.html): VFD-HS310 Series
    - [VFD-HS290 Series](https://www.hars-vfd.com/vfd-HS290-series.html): VFD-HS290 Series
    - [Solar Pump VFD](https://www.hars-vfd.com/solar-pump-vfd.html): Solar Pump VFD
    - [VFD-HS810 Series](https://www.hars-vfd.com/VFD-HS810-Series-pl00352676.html): VFD-HS810 Series
- [VFD-660V](https://www.hars-vfd.com/VFD-HS300A-660V-Series-pl03999676.html): VFD-660V
    - [VFD-HS300A 660V Series](https://www.hars-vfd.com/VFD-HS300A-660V-Series-pc03999676.html): VFD-HS300A 660V Series
- [Hybrid Inverter](https://www.hars-vfd.com/hybrid-inverter.html): Hybrid Inverter
    - [HE200 Series](https://www.hars-vfd.com/hybrid-solar-inverter.html): HE200 Series
- [Accessories](https://www.hars-vfd.com/Accessories-pl42652697.html): Accessories
    - [Braking Resistor Unit](https://www.hars-vfd.com/Braking-Resistor-Unit-pl48552697.html): Braking Resistor Unit
    - [DC Braking Unit](https://www.hars-vfd.com/DC-Braking-Unit-pl43552697.html): DC Braking Unit
    - [Filter](https://www.hars-vfd.com/Filter-pl45552697.html): Filter
    - [Prower Resistor Unit](https://www.hars-vfd.com/Prower-Resistor-Unit-pl46552697.html): Prower Resistor Unit
    - [Reactor](https://www.hars-vfd.com/Reactor-pl44552697.html): Reactor
    - [Wire Wound Resistor](https://www.hars-vfd.com/Wire-Wound-Resistor-pl47552697.html): Wire Wound Resistor
    - [Fans](https://www.hars-vfd.com/application-of-vfd-in-fans.html): Fans
    - [Numerical Control](https://www.hars-vfd.com/application-of-vfd-in-numerical-control.html): Numerical Control
    - [Double Twist Frames](https://www.hars-vfd.com/application-of-vfd-in-double-twist-frames.html): Double Twist Frames
    - [Straightening Machine](https://www.hars-vfd.com/application-of-vfd-in-straightening-machine.html): Straightening Machine
- [About US](https://www.hars-vfd.com/about-us.html): About US
    - [Partner & Review](https://www.hars-vfd.com/partner-review.html): Partner & Review
    - [Our Facilities](https://www.hars-vfd.com/our-facilities.html): Our Facilities
    - [R&D](https://www.hars-vfd.com/research-development.html): R&D
    - [Certificate](https://www.hars-vfd.com/certificate.html): Certificate
    - [After-sale Service](https://www.hars-vfd.com/after-sale-service.html): After-sale Service
- [Contact](https://www.hars-vfd.com/contactus.html): Contact

## Product Category
- [VFD-HS320 Series](https://www.hars-vfd.com/vfd-HS320-series.html): VFD-HS320 Series
- [VFD-HS320Pro](https://www.hars-vfd.com/vfd-hs320pro.html): VFD-HS320Pro
- [VFD-HS520Pro](https://www.hars-vfd.com/VFD-HS520Pro-pl02594176.html): VFD-HS520Pro
- [VFD-HS930A](https://www.hars-vfd.com/vfd-hs930a.html): VFD-HS930A
- [VFD-HS300A 660V Series](https://www.hars-vfd.com/VFD-HS300A-660V-Series-pl03999676.html): VFD-HS300A 660V Series
- [VFD-HS800SF Series](https://www.hars-vfd.com/vfd-HS800SF-series.html): VFD-HS800SF Series
- [VFD-HS800A Series](https://www.hars-vfd.com/vfd-HS800A-series.html): VFD-HS800A Series
- [VFD-HS720 Series](https://www.hars-vfd.com/vfd-HS720-series.html): VFD-HS720 Series
- [VFD-HS720H Series](https://www.hars-vfd.com/VFD-HS720H-Series-pl47981286.html): VFD-HS720H Series
- [VFD-HS310 Series](https://www.hars-vfd.com/vfd-hs310-series.html): VFD-HS310 Series
- [VFD-HS290 Series](https://www.hars-vfd.com/vfd-HS290-series.html): VFD-HS290 Series
- [Hybrid Solar Inverter](https://www.hars-vfd.com/hybrid-solar-inverter.html): Hybrid Solar Inverter
    - [HE200 Series](https://www.hars-vfd.com/HE200-Series-pl45141286.html): HE200 Series
    - [HE300 Series](https://www.hars-vfd.com/HE300-Series-pl44141286.html): HE300 Series
- [Solar Pump VFD](https://www.hars-vfd.com/solar-pump-vfd.html): Solar Pump VFD
- [Accessories](https://www.hars-vfd.com/Accessories-pl42652697.html): Accessories
    - [Braking Resistor Unit](https://www.hars-vfd.com/Braking-Resistor-Unit-pl48552697.html): Braking Resistor Unit
    - [DC Braking Unit](https://www.hars-vfd.com/DC-Braking-Unit-pl43552697.html): DC Braking Unit
    - [Filter](https://www.hars-vfd.com/Filter-pl45552697.html): Filter
    - [Prower Resistor Unit](https://www.hars-vfd.com/Prower-Resistor-Unit-pl46552697.html): Prower Resistor Unit
    - [Reactor](https://www.hars-vfd.com/Reactor-pl44552697.html): Reactor
    - [Wire Wound Resistor](https://www.hars-vfd.com/Wire-Wound-Resistor-pl47552697.html): Wire Wound Resistor
- [VFD-HS810 Series](https://www.hars-vfd.com/VFD-HS810-Series-pl00352676.html): VFD-HS810 Series

## FAQ
- **Q: What does a variable frequency drive do?**
  A: A variable frequency drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage supplied to it. it widely used in various applications, including HVAC systems, industrial machinery, pumps, fans, compressors, and more.
- **Q: What is difference between VSD and VFD?**
  A: Variable frequency drives (VFDs) and variable speed drives (VSDs) differ in that VFDs are AC drives only, while VSDs can be either AC drives or DC drives.  VFDs vary the speed of an AC motor by varying the frequency to the motor.  VSDs referring to DC motors, vary the speed by varying the voltage to the motor.The VFD is designed for the continuous operation of electrical motors.
- **Q: What is the advantage to variable frequency drive motors?**
  A: Energy efficiency, soft start and stop capabilities, enhanced process control, extended motor lifespan, adaptability to load changes, reduced electrical stress, cost savings, improved power factor, remote monitoring and control features.
- **Q: What applications can I use a VFD?**
  A: Pumps  Fans  Conveyors Compressors  Centrifuges  Mixers and Agitators  Machine Tools  Crushers and Grinders Extruders Hoists and Lifts  Escalators and Elevators Paper Machines  Textile Machinery  Electric Vehicles  Wastewater Treatment 
- **Q: What are the different types of variable frequency drives?**
  A: Single phase and three phase VFD A single-phase converter outputs three phases with a voltage of 220V from a single-phase 220V network. Three-phase VFDs are connected to three-phase 380V networks and output three phases at 380V as output voltage.