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Drives & Soft Starters > AC Variable Frequency Drives (VFD)

In Depth

AC Variable Frequency Drives (VFD)

Variable frequency drives (VFD) enable speed control for three-phase AC motors such as those in conveyors, fans, pumps and shop tools. In ratings up to 300hp, the diverse lineup includes GS series, Ironhorse and WEG brands, with various environmental ratings and control modes. A full line of accessories for each drive family ensures a reliable installation.

Micro

General Purpose

High-Performance

NEMA 4X

VFD Accessories

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AC Variable Frequency Drives (VFD)

Latest Drives Videos

Variable Frequency AC Drives - 1/4 HP to 300 HP

Micro - CFW100, CFW300 Series, GS1, GS2 Series
General Purpose - DURApulse GS20 Series, GS3 Series
High Performance - DURApulse GS4 Series
NEMA 4X - DURApulse GS20X Series - IronHorse ACN Series

AutomationDirect carries a range of AC variable frequency drives (VFD) for motor speed control and other industrial control applications.

Single phase only, dual single / three phase, and three phase only AC drives are available.
The DURApulse (GS20, GS20X, GS3, GS4 series) sensorless vector AC drives can handle applications from 1 horsepower up to 300 horsepower.
WEG CFW100 and CFW300 AC drives offer high-performance in a reduced compact size and ease-of-use with built-in HMI operator interface and SoftPLC
The high quality and low prices make our GS1 series mini AC drives an incredible deal.

AC Drives Overview and Selection Guide

Micro AC Drives

WEG - CFW100 Drive Units

High-performance VFD in reduced compact size

WEG - CFW100 Drives start at
$121.00
(CFW100A01P6S220G2)

WEG - CFW300 Drive Units

High-performance VFD in reduced compact size

WEG - CFW300 Drives start at
$146.00
(CFW300A01P6S2NB20)

GS1 Series Mini AC Drives

Our most affordable and compact inverter drive

1/4 and 1/2 hp, 115 VAC single phase input VFD
1/4, 1/2 and 1 hp, 230 VAC single/three-phase input VFD
2 hp, 230 VAC 3 phase VFD

GS1 series drive prices start at
$117.00
(GS1-10P2)

General Purpose AC Drives

DURApulse GS20 Series AC Drives

Several speed control modes available: standard V/Hz with pulse input feedback, sensorless vector control (SVC), and ultra precise Field Oriented Vector control (FOC).

Single-phase 120VAC up to 1hp
Single-phase/3-phase 230VAC up to 20hp
Three-phase 460VAC and 575VAC

DURApulse GS3 Series AC Drives

Sensorless vector technology up to 100 hp VFD

1 hp to 3 hp, 230 VAC single/3-phase input VFD
5 hp to 50 hp VFD, 230 VAC
1 hp to 100 hp VFD, 460 VAC

General purpose AC drive prices start at
$144.00
(GS21-20P2)

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High-Performance AC Drives

DURApulse AC Drives - GS4 Series

Sensorless vector technology up to 300 hp VFD

230V 1-phase - frame sizes A-B (1-5 hp)
230V 1-phase - sizes C-E (7.5-25 hp)
230V 3-phase - sizes A-B (1-15 hp)
230V 3-phase - sizes C-E (20-100 hp)
460V 3-phase - sizes A-B (1-20 hp)
460V 3-phase - sizes C-D (25-100 hp)
460V 3-phase - sizes E-G (125-300 hp)

DURApulse GS4 series drive prices start at
$463.00
(GS4-21P0)

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VFDs - Durapulse GS20(X) Series - AC Drives

NEMA 4X AC Drives

IronHorse ACN/ACNND Series AC Drives ... New!

ACN series NEMA 4X drives offer standard V/Hz, slip compensation, sensorless vector control (SVC), and torque control. Confgiure these drives with the free, user-friendly VFD Suite configuration software.