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NEMA 4X rated variable frequency drives (VFD) enable speed control for 3-phase AC motors such as those in conveyors and pumps, and are suitable for washdown-duty applications. They offer V/Hz, sensorless vector or field oriented vector control up to 30hp.
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Washdown (NEMA 4X) AC Drives
Category Selection
The NEMA 4X environmental rating is given to drive enclosures that are washdown duty-rated and built to withstand a harsh environment. Food and beverage processing and water treatment facilities (both indoors and outdoors) are examples of harsh environments where the equipment will be subject to repeated high-pressure washdowns.
The NEMA 4X enclosure also allows you to mount the VFD directly to a machine, outside of an electrical panel. This can eliminate long runs of expensive VFD cable for motor wiring, reduce the need for external VFD output filters and in some cases simply provide a convenient, self-contained motor control at the machine or conveyor with an optional OSHA certified lock-out/tag-out disconnect.
For part listings and specifications, go to Shop Now
NEMA 4X AC Drives Overview
WEG CFW500 NEMA 4X AC Drives
Newest Additions!
- WEG higher current 10hp IP66/NEMA 4X drives
WEG CFW500 series drives are high-performance AC variable frequency drives that support closed-loop flux vector speed control as well as torque control modes and can operate both AC Induction motors and permanent magnet AC motors. These models are offered in an IP66/NEMA 4X enclosure up to 20hp.
Rated for washdown applications and suitable for use in direct sunlight
- 200-240 VAC 1-phase up to 3hp, 3-phase up to 10hp
- 380-480 VAC 3-phase up to 20hp
- Control modes include Scalar, Vector Control (Sensorless and closed-loop with encoder feedback), and VVW PM (suitable for fan, pump and compressor)
- 0 to 500 Hz output frequency range
- 2.5 to 15 kHz adjustable switching frequency (5 kHz standard)
- Speed and torque control down to 0 (zero) rpm & precision of 0.01% for speed control are attainable with closed-loop encoder feedback using vector control
- Linear and "S" ramp acceleration and deceleration
- Local/remote control
- DC braking
- Torque boost
- Motor slip compensation
- Electronic pot, preset speeds & Jog modes
- Adjustable V/Hz profile
- Adjustable output current limit
- Flying start / ride-thru
- PID regulator & PID sleep mode
- AC Induction motors or Permanent magnet AC (PMAC) motor support
- Built-in SoftPLC
- Built-in RS-485 (Modbus RTU) communication
- Plenty of built-in I/O, expandable with option modules
- Built-in 24VDC power supply (max. 150 mA)
- STO - Safe Torque Off (TUV certified) with option module
- Optional remote keypads
Starting at
$427.00
(14989840)
IronHorse ACN NEMA 4X AC Drives
The ACN series of NEMA 4X sensorless vector AC drives have features normally only found on more expensive drives, in a NEMA 4X enclosure and at a great price. These drives offer an advanced remote keypad, Ethernet option cards so the drive can communicate over Modbus TCP and EtherNet/IP, and the option to configure and program using the free, user-friendly VFD Suite software. ACNxx series drives support 4 control modes which include V/Hz, slip compensation, sensorless vector and torque control.
- 230 VAC: three-phase up to 20hp, single phase up to 10hp
- 460 VAC: three-phase up to 30hp, single-phase up to 15hp
- Single-phase UL Ratings - 230 or 460 VAC input
- Can be used with AC induction motors or permanent magnet AC motors (PMAC)
- Lockable, integrated disconnect or no-disconnect models
- Output frequency to 400Hz (120Hz sensorless vector)
- STO - Safe Torque Off (SIL2)
- Built-in user sequence programming of 18 steps
- Optional LCD text-based keypad can be remotely mounted with IP66 case
- Local/Remote control mode selection or digital/comm input with Hand/Off/Auto control
- Momentary power loss restarts
- Analog I/O - configurable 2 Inputs and 1 output
- 2-motor control
- Built-in dynamic braking
- PID controller - including sleep and wake
- High speed communication interfaces with MODBUS RTU built-in, with optional EtherNet/IP and ModbusTCP communication card
- Fire Mode - run fire mode during emergencies to have uninterrupted smoke removal and system pressure
Starting at
$242.00
(ACNND-20P5)
DURApulse GS20X NEMA 4X AC Drives
The DURApulse GS20X new generation high performance vector control drives provide many standard and advanced functions - all in a compact unit that has been reduced 40% in size. The NEMA 4X version provides service in the harshest of environments and offers many great features including dynamic braking, single-phase input capability (ALL 230VAC drives can be supplied single-phase), a built-in PLC, and optional EtherNet/IP and ModbusTCP communication. The drive supports up to four (4) independent IM motor parameter sets or supports control of a single AC PM motor. DURApulse GS20X AC drives offer several different speed control modes: standard V/Hz with pulse input feedback, sensorless vector (SVC) for Induction Motors (IM) and Permanent Motors (PM), and ultra-precise Field Oriented Vector control (FOC) for maximum open loop speed regulation control.
- Compact modular design
- NEMA 4X available up to 10hp
- Single-phase/three-phase 230 VAC up to 7.5hp
- Three-phase 460 VAC up to 10hp
- Output frequency to 600Hz
- Speed control potentiometer built in
- Built-in PLC to support up to 2K steps
- Built-in USB port for fast & easy programming
- Free downloadable software for drive configuration and PLC programming
- Field-upgradable firmware (drive & communication option card)
- Optional remote LCD keypad
- Momentary power loss restarts
- 100kA Short Circuit Current Rating
- Digital I/O - configurable (7) digital inputs (including one pulse train input up to 33kHz); (2) digital outputs
- (1) SPDT relay output
- (1) frequency output
- (2) STO (Safe Torque Off) inputs
- Analog I/O - configurable (2) Inputs and (1) Output
- Multi-motor control (4 total)
Starting at
$242.00
(GS21X-20P5)
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