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Variable frequency drives (VFD) enable speed control for 3-phase AC motors such as those in conveyors, fans, pumps and shop tools. In ratings up to 300hp, the diverse lineup includes DURApulse GS series, Ironhorse, Toshiba, and WEG brands, with various environmental ratings and control modes.
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AC Variable Frequency Drives (VFD)
Variable frequency drives control the speed of alternating-current (AC) induction motors. In addition to saving energy, VFDs also reduce inrush current when starting a motor and provide controlled acceleration/deceleration to help prolong AC motor life.
- Micro drives enable speed control for AC motors at an affordable price and in a compact footprint
- General purpose drives provide speed control for AC motors in a variety of applications including conveyors, fans, and pumps
- High-performance AC drives offer advanced features such as STO, closed-loop vector control and a built-in logic controller
- VFDs suitable for washdown-duty applications are housed in a NEMA 4X (IP66) enclosure
- A wide variety of accessories includes line reactors, braking units, I/O modules, fans, and keypads
AC Drives Overview and Selection GuideFor part listing and specifications, go to Shop Now
Micro VFDs
WEG CFW100 Drives
WEG CFW100 drives offer high performance and compact size, with a built-in HMI and PLC. These micro drives offer sensorless vector (SVC), scalar (V/F) or voltage vector (VVW) control
- 115 VAC single-phase input / 230 VAC three-phase output, up to 1/2hp
- 230 VAC single-phase input / 230 VAC three-phase output, up to 1hp
DURApulse GS10 Drives
The DURApulse GS10 series offers high quality and abundant features at our lowest price point. These drives support sensorless vector (SVC) or scalar (V/F) drive modes.
- 120 VAC single-phase 1/4 to 1hp
- 230 VAC single-phase 1/4 to 3hp
- 230 VAC three-phase 1/4 to 7.5hp
- 460 VAC three-phase 1/2 to 10hp
General Purpose VFDs
DURApulse GS20 AC Drives
DURApulse GS20 general purpose vector control drives provide many standard and advanced functions, all in a compact unit. Speed control modes available include standard V/Hz with pulse input feedback, sensorless vector control (SVC), and ultra precise field oriented vector control (FOC).
- Single-phase 120 VAC up to 1hp
- Single-phase/3-phase 230 VAC up to 20hp
- Three-phase 460 VAC up to 30hp
- Three-phase 575 VAC up to 10hp
IronHorse ACG Drives
The IronHorse ACG series of sensorless vector AC drives bridges the gap between a micro drive and high-performance VFD. These drives provide a variety of great features including dynamic braking, PID functionality, and RS-485 Modbus communication. All of the 230VAC and 460VAC models are fully capable of single-phase input capability (with derating), they offer several embedded analog and discrete I/O points, and can support up to two (2) independent IM motor parameter sets.
- Single-phase 230 VAC up to 10hp
- Three-phase 230 VAC up to 20hp
- Single-phase 460 VAC up to 15hp
- Three-phase 460 VAC up to 30hp
WEG CFW320 Drives
WEG CFW320 AC series drives are feature rich general purpose drives which include a built-in operator interface and SoftPLC. They also support scalar (V/Hz) or voltage vector (VVW) control. These drives include all the features of the CFW300 and add support for 460 VAC and optional Ethernet communications.
- 115 VAC single-phase input / 230 VAC three-phase output, up to 1.5hp
- 230 VAC single-phase input / 230 VAC three-phase output, up to 3hp
- 230 VAC three-phase input I 230 VAC three-phase output, up to 5hp
- 460 VAC three-phase input I 460 VAC three-phase output, up to 10hp
WEG CFW300 Drives
WEG CFW300 AC drives offer general purpose and ease-of-use with built-in HMI operator interface and SoftPLC, and support scalar (V/Hz) or voltage vector (VVW) control.
- 120 VAC single-phase input / 230 VAC three-phase output, up to 1.5hp
- 230 VAC single-phase input / 230 VAC three-phase output, up to 3hp
- 230 VAC three-phase input / 230 VAC three-phase output, up to 5hp
High-Performance VFDs
DURApulse GS30 AC Drives
DURApulse GS30 drives provide expanded parameter sets for greater versatility, several Ethernet communication options (including EtherCAT®), and advanced control modes including full closed loop for induction or permanent magnet AC motors.
- 230 VAC single-phase 1/2 to 3hp
- 230 VAC three-phase 1/2 to 50hp
- 460 VAC three-phase 1/2 to 100hp
Toshiba AS3 AC Drives
Toshiba is a brand known for ruggedness and durability. The AS3 drives include many great features built in, such as Ethernet communication, that are an added cost with other drives. On top of the many embedded features, optional features include EtherCAT communications, closed-loop vector control, and optional 120 vac IO card.
- 460 VAC three-phase 1/2 to 300hp
WEG CFW500 AC Drives
WEG CFW500 high-performance drives support closed-loop flux vector and torque control modes, available in sizes up to 150hp.
- 230 VAC single-phase 1/4 to 3hp
- 230 VAC three-phase 1/4 to 40hp
- 460 VAC three-phase 1/3 to 150hp
DURApulse GS4 AC Drives
DURApulse GS4 series AC drives handle applications up to 300hp, and support sensorless vector technology.
- 230 VAC single-phase 1 to 25hp
- 230 VAC three-phase 1 to 100hp
- 460 VAC three-phase 1 to 300hp
Washdown (NEMA 4X) VFDs
WEG CFW500 IP66 AC Drives
Same closed-loop flux vector technology as the CFW500 IP20 in a NEMA 4X rated enclosure, in sizes up to 20hp.
- 230 VAC single-phase 1/4 to 3hp
- 230 VAC three-phase 1/4 to 10hp
- 460 VAC three-phase 1/3 to 20hp
IronHorse ACN/ACNND Series AC Drives
ACN series NEMA 4X drives offer standard V/Hz, slip compensation, sensorless vector control (SVC), and torque control. Configure these drives with the free, user-friendly VFD Suite configuration software.
- IP66 / NEMA 4X rating
- Three-phase 200-240 VAC, 50/60 Hz, up to 20hp
- Three-phase 380-480 VAC, 50/60 Hz, up to 30hp
DURApulse GS20X NEMA 4X AC Drives
GS20X series NEMA 4X drives offer standard V/Hz with pulse input feedback, sensorless vector control (SVC), and Field Oriented Vector control.
- IP66 / NEMA 4X rating
- Three-phase 200-240 VAC, 50/60 Hz, up to 7.5hp
- Three-phase 380-480 VAC, 50/60 Hz, up to 10hp
VFD Communication & I/O Modules
VFD Software & Accessories
Line Reactors & Output Filters
Braking Units & Resistors
EMI Filters
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