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Used Ac Drives (Variable Frequency Drives Vf Ds) in Maryland, USA

  • Allen Bradley PowerFlex 40 AC

    Allen Bradley PowerFlex 40 AC Drive

    • used

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 40

    Allen Bradley PowerFlex 40 AC Drive AC DRIVE ADJUSTABLE FREQUENCY POWERFLEX 40 480 VAC 3 PHASE 1.4 AMP 0.4 KW 0.5 HP PANEL MOUNT – IP 20 NEMA TYPE OPEN FIXED KEYPAD NOT FILTERED STANDARD BRAKE rbb – R1 G3 P58

    $625 USD
    Frederick, MD
  • ABB ACH550-VCR-012A-2 Variable Frequency Drive

    ABB ACH550-VCR-012A-2 Variable Frequency Drive – NEW

    • used

    • Manufacturer: ABB
    • Model: ACH550

    ABB ACH550-VCR-012A-2 Variable Frequency Drive – NEW Item is new, unused in original packaging, open box. DOM: Sept 2015. 2 in stock. Application: HVAC (Heating, Ventilation, and Air Conditioning) Voltage Class: ...

    $1,800 USD
    Frederick, MD
  • Allen Bradley 20AD011C3AYNANC0 PowerFlex 70

    Allen Bradley 20AD011C3AYNANC0 PowerFlex 70 AC Drive Series A

    • used

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 70

    Allen Bradley 20AD011C3AYNANC0 PowerFlex 70 AC Drive Series A Item is in good condition. Has minor cosmetic wear. DOES NOT come with any accessories. 30 Day Warranty. ☼ Shipping cost is for the 48 Continental Uni...

    $2,250 USD
    Baltimore, MD
  • 2021 Allen Bradley AB 700

    2021 Allen Bradley AB 700 horsepower Variable Frequency Drive Powerflex Air Cooled 755 Relay

    • used

    • Manufacturer: Allen-Bradley
    • Model: PowerFlex 700

    Part Number 21G1AJD740JN4NNNNN. No disconnect with VFD. 700 HP VFD was operated for 8 months before being replaced with a larger motor and VFD. VFD is in excellent shape and works without problem. VFD can be powe...

    $40,550 USD

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    Est. $763/mo

    Elkton, MD

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.