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authorized distributors

AC Drives


Variable Frequency Drives For Every Application!

VFD's adjust your motor speed to closely match output requirements, resulting in a typical energy savings of 10 to 50 percent.

Technical help is always available - please contact us!!

Visit our All About Drives page now!


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Showing 1 to 4 of 4 products.
  Name Price
Showing 1 to 4 of 4 products.
Sensorless AC Vector Drive, NEMA 1<br />Input:200-250VAC<br />U.S. Drives D2Sensorless AC Vector Drive, NEMA 1
Input:200-250VAC
U.S. Drives D2
Available from 3 to 3,500 horsepower.
Line reactors included! Very rugged drive.
Starting at $1,299.00
Sensorless AC Vector Drive, NEMA 1<br>Input:380-500 or 525-600VAC<br>U.S. DrivesSensorless AC Vector Drive, NEMA 1
Input:380-500 or 525-600VAC
U.S. Drives
Available from 5 to 3,500 horsepower.
Line reactors included! Very rugged drive.
Starting at $1,329.00
Sensorless AC Vector Drive, NEMA 12<br />Input:200-250VAC<br />U.S. Drives D2Sensorless AC Vector Drive, NEMA 12
Input:200-250VAC
U.S. Drives D2
Available from 5 to 3,500 horsepower.
Line reactors included! Very rugged drive.
Starting at $1,500.00
Sensorless AC Vector Drive,NEMA 12<br>Input:380-500 or 525-600VAC<br>U.S. DrivesSensorless AC Vector Drive,NEMA 12
Input:380-500 or 525-600VAC
U.S. Drives
Available from 5 to 3,500 horsepower!
Line reactors included! Very rugged drive.
Starting at $1,575.00

Marshall Wolf Automation is a large stocking distributor for a wide range of variable speed drives with engineers on staff to assist you! If you need any assistance at all please contact us!

You can also take a look at this spreadsheet - we list our popular AC drives as well as the properly sized enclosure to go with it!

Learn the basics about variable frequency drives here!


AC Drives are also called variable frequency drives, VFD's, variable speed drives, inverters, adjustable speed drives, variable freq drives. We are your authorized stocking distributor for all AC drives you see listed including AC Tech, Fuji, Hitachi, TECO-Westinghouse, Lenze, Delta, U.S. Drives.

AC Tech Lenze is the only variable frequency drive manufacturer to offer an outdoor choice!