Industrial Automation » Drives » AC Drives (Variable Frequency Drives - VFDs)

Search By Manufacturer

Search By Country

Building Filters

1782

Used Ac Drives (Variable Frequency Drives Vf Ds)

  • Trusted Seller
    ABB ACH 400 Drive

    ABB ACH 400 Drive

    • Manufacturer: ABB
    • Model: ACH400

    (1) ABB Control Panel, Cat No. ACH402614032, 3PH, 380-480V, w/(1) ABB Circuit Breaker, Cat No. LR54280, Type: S4N, 600V, 3P, Issue: L-5062; (1) ABB EH 210 Contactor, 300A, 660-690V; Removed from Service November ...

    Spartanburg, SC
  • Trusted Seller
    ABB ACS600 Drive

    ABB ACS600 Drive

    • Manufacturer: ABB
    • Model: ACS

    Cat No. ASS61100255, 3PH, 380-500V, 22/28A; Removed from Service October 2025

    Spartanburg, SC
  • Trusted Seller
    ABB ACS800 Drives

    ABB ACS800 Drives

    • Manufacturer: ABB
    • Model: ACS800

    Cat No. ACS800-U1-0120-5+P901+V944, 3PH, 380-500V, 155A, 125 hP; Removed from Service November 2025

    Spartanburg, SC
  • Trusted Seller
    ABB ACH 400 Drive

    ABB ACH 400 Drive

    • Manufacturer: ABB
    • Model: ACH400

    (1) ABB Control Panel, Cat No. ACH402614032+KOB00R0, 380-480V, 3PH, 180A; (2) ABB Contactors, Cat No. IEC 947-4-1 SK402, 300A, 1000V; (1) ABB S4N Circuit Breakers, Cat No. L-5062, 3P; Removed from Service Novembe...

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley 1336-BDB-SP3A Gate Drive

    Allen Bradley 1336-BDB-SP3A Gate Drive Board for 15HP Drives New NIB

    • Manufacturer: Allen-Bradley
    • Model: 1336

    This is a new surplus Allen Bradley Gate Drive Board. Save thousands and buy from Green Industrial today!

    $2,650 USD
    Belgium, WI
  • Trusted Seller
    Allen Bradley PowerFlex 525 AC

    Allen Bradley PowerFlex 525 AC Drive 25B-D1P4N114 Ser. A 884951885998

    • Manufacturer: Allen-Bradley
    • Model: 25B-D1P4N114

    “This item is in new condition it was removed from a piece of machinery that was never in use. No box included.” YOU ARE BUYING ONE (1) Allen Bradley PowerFlex 525 AC Drive 25B-D1P4N114 Ser. A. THIS ITEM IS IN (N...

    $425 USD
    Austinville, VA
  • Trusted Seller
    Allen Bradley 1336F-B020-AA-EN-HAS2-L5

    Allen Bradley 1336F-B020-AA-EN-HAS2-L5

    • Manufacturer: Allen-Bradley
    • Model: 1336

    Allen Bradley Motor Controller Spindle Drive 1336 Plus2 1336F-B020-AA-EN-HAS2-L5, 1336 PLUS II Adjustable Frequency Drive 1336 PLUS II Adjustable Frequency Drive Programmer/Controller w/Digital Pot 24V AC/DC Cont...

    Cincinnati, OH
  • Trusted Seller
    ABB ACH550 Drive with Enclosure

    ABB ACH550 Drive with Enclosure

    • Manufacturer: ABB
    • Model: ACH550

    Drive, Cat No. ACH550-BD-097A-4, 3PH, 96A, 380/480V, 75 HP; Removed from Service December 2025

    Spartanburg, SC
  • Trusted Seller
    Allen-Bradley 25B-D4P0N104 PowerFlex 525 2

    Allen-Bradley 25B-D4P0N104 PowerFlex 525 2 HP AC Drive 884951885882

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 525

    “This item is in new condition it was removed from a piece of machinery that was never in use. No box included.” YOU ARE BUYING ONE (1) Allen-Bradley 25B-D4P0N104 PowerFlex 525 2 HP AC Drive. THIS ITEM IS IN (NEW...

    $549 USD
    Austinville, VA
  • Trusted Seller
    Allen Bradley Powerflex 700 Drives

    Allen Bradley Powerflex 700 Drives

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 700

    Cat No. 20BD 125 A0 ANNANC0, 400/480V, Input: 3PH, 342-528V, Output: 3PH, 0-460V; Removed from Service October 2025

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley Powerflex 700 Drives

    Allen Bradley Powerflex 700 Drives

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 700

    Cat No. 20BD 125 A0 ANNANC0, 400/480V, Input: 3PH, 342-528V, Output: 3PH, 0-460V; Removed from Service October 2025

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley 70 Powerflex Drive

    Allen Bradley 70 Powerflex Drive

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 70

    Cat No. 20AE6P1A0AYNNNCO, 600V, 3-5 HP, 7.5A

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley 70 Powerflex Drive

    Allen Bradley 70 Powerflex Drive

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 70

    Cat No. 20AE6P1A0AYNNNCO, 600V, 3-5 HP, 7.5A

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley Powerflex 70 AC

    Allen Bradley Powerflex 70 AC Drive

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 70

    Cat No. 20A E 011 AO AYNNNCO, 3PH, 432-660V, 9.8A

    Spartanburg, SC
  • Trusted Seller
    Allen Bradley PowerFlex 70 AC

    Allen Bradley PowerFlex 70 AC Drive 20AE9P0A3AYNNNNN New In Box

    • Manufacturer: Allen-Bradley
    • Model: 20AE9P0A0AYNNNNN

    YOU ARE BUYING ONE (1) Allen Bradley PowerFlex 70 AC drive 20AE9P0A3AYNNNNN. THIS ITEM IS IN NEW CONDITION IT COMES IN MANUFACTURER'S PACKAGING. SEE PHOTOS FOR MORE SPECIFICATIONS. IF YOU HAVE ANY QUESTIONS PLEAS...

    $889 USD
    Austinville, VA
910111213

Overview

Variable-frequency drives (VFDs) are devices used to control the speed and torque of electric motors by varying the frequency and voltage of the power supplied. VFDs are commonly used in applications like HVAC systems, industrial machinery, and pumps where precise motor control improves efficiency and performance.

FAQ

What should I consider when buying a used variable-frequency drive?

Check the VFD's compatibility with your motor, its power rating, and any signs of wear or damage. Ensure it has been properly maintained and inquire about its operational history.

How do I ensure the VFD is shipped safely to my location?

Use a reputable transport service that specializes in electronic equipment. Ensure the VFD is securely packaged to prevent damage during transit and consider insuring the shipment.

What is the maintenance schedule for a variable-frequency drive?

Regularly inspect for dust and debris, check connections for tightness, and ensure proper ventilation. Follow the manufacturer's recommendations for periodic checks and servicing.