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Drives and Soft Starters

AC and DC Drives


IronHorse® GSD Series DC Drives - 1/50 HP to 3 HP


These IronHorse DC drives can accommodate 1/50 hp @ 12VDC all the way up to 3hp @ 240VAC. DC motors and drives can provide several advantages and benefits over AC:
  • Inexpensive
  • Low speed performance
  • Low speed power
  • Simple
    - our DC drives typically use potentiometers for configuration
    - no parameters or programming needed
  • DC Drives Overview and Selection Guide
  • DC Drives Overview and Selection Guide


Variable Frequency AC Drives - 1/4 HP to 100 HP


AutomationDirect carries a range of AC variable frequency drives (VFD) for motor speed control and other industrial control applications.
  • The high quality and low prices make our GS1 series mini AC drives and GS2 series micro variable speed drives an incredible deal.
  • The DURApulse (GS3 series) sensorless vector AC drives can handle applications from 1 horsepower up to 100 horsepower.
  • Single phase only, dual single / three phase, and three phase only AC drives are available.
  • AC Drives Overview and Selection Guide
  • AC Drives Overview and Selection Guide

AC Motor Soft Starters


STELLAR® SR22, SR33 and SR55 series semi-conductor solid state soft starters provide many advantages when used instead of electro-mechanical contactors to control 3-phase AC induction motors.
  • Compact SR22 Series - 5-40A @ 208-460VAC
  • Basic SR33 Series - 22-482A @ 208-460VAC
  • Full-Featured SR55 Series - 17-477A @ 200-480VAC
  • Soft Starters Overview and Selection Guide
  • Soft Starters Overview and Selection Guide

GS1 (120 / 230 VAC V/Hz Control)GS1 (120 / 230 VAC V/Hz Control)
The GS1 series of AC drives is our most affordable and compact inverter, offering V/ Hz control with advanced application features. These drives can be configured using the built-in digital keypad (which also allows you to set the drive speed, start and stop, and monitor specific parameters) or with the standard RS485 serial communications port.
GS2 (115 / 230 / 460 / 575 VAC V/Hz Control)GS2 (115 / 230 / 460 / 575 VAC V/Hz Control)
The GS2 series of AC drives offers all of the features of our GS1 AC drives plus dynamic braking, PID and a removable keypad.
0.37 to 5.5kw, 230 VAC - 0.75 to 7.5kw, 460 VAC and 575 VAC
DURApulse - GS3 (230 / 460 VAC Sensorless Vector Control)DURApulse - GS3 (230 / 460 VAC Sensorless Vector Control)
DURApulse drives are available in 0.75kw to 75kw models and offer sensorless vector and closed loop control, autotuning, 150% starting torque, and 150% rate current for one minute.
AC Motor Soft StartersAC Motor Soft Starters
STELLAR™ SR22 and SR44 series semi-conductor solid state soft starters provide many advantages when used instead of electro-mechanical contactors to control 3-phase AC induction motors. The SR22 motor soft starters use thyristors for controlled reduced voltage motor soft starting and stopping. New! ... The SR44 solid state starters are fully digital and have an Automatic Application Setup that fully configures the motor soft starter for a specific application with one entry. Energy Optimizing mode reduces electrical consumption on lightly loaded/oversized motors.
GS Configuration & Communications & SoftwareGS Configuration & Communications & Software
Spare keypads, keypad cables and other cables, plus GSOFT configuration software.
AC Drive (VFD) Spare Parts & AccessoriesAC Drive (VFD) Spare Parts & Accessories
DURApulse variable speed drive products provide a variety of AC drive models to support all your industrial control applications.
  • GS1 miniature V/F Inverter drive - 0.18 to 1.5kw, 115/230 VAC input.
  • GS2 micro V/F Inverter drive - 0.18 to 7.5kw, 115/230/460/575 VAC input.
  • DuraPULSE GS3 Sensorless Vector series - 0.75 to 75kw, 230/460 VAC input.
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