- Barcode / RFID / Vision
- Bulk Wire & Cable
- Cables (Terminated)
- Circuit Protection / Fuses / Disconnects
- Communications
- Drives & Soft Starters
- Enclosure Thermal Management & Lights
- Enclosures & Racks
- Field I/O
- HMI (Human Machine Interface)
- Hydraulic Components
- Motion Control
- Motor Controls
- Motors
- Pneumatic Components
- Power Products (Electrical)
- Power Transmission (Mechanical)
- Process Control & Measurement
- Programmable Controllers
- Pushbuttons / Switches / Indicators
- Relays / Timers
- Safety
- Sensors / Encoders
- Stacklights
- Structural Frames / Rails
- Tools & Test Equipment
- Valves
- Water (Potable) Components
- Wire & Cable Management
- Wire & Cable Termination
- Retired Products
Configuration Utilities
- PLC Family Selector
- P1000 PLC Systems
- P2000 PLC Systems
- P3000 PLC Systems
- ProductivityCODESYS
- CLICK PLC Systems
- Do-more® BRX PLC Systems
- LS-Electric® XGB PLC Systems
- Productivity®Open Systems
- Datalogic® Safety Light Curtains
- LS-Electric® Servo Systems
- Nitra® Pneumatic Grippers
- Object Detection (Sensors)
- PAL Controller Configurator
- Precision Gearbox Selector
- Protos X® Field I/O
- Pyrometers Selector
- Quadritalia® Modular Enclosures
- Soft Starters
- Stepper System Selector
- SureFrame T-slot Extrusion
- SureMotion® XYZ Gantry
- SureServo2® System Selector
- SureStep® Linear Actuators
- Timing Belts & Pulleys
- VFD Selector
- Werma® Stacklights
- ZIPLinks
Drive Reactors & Output Filters
Drive reactors on VFD line inputs protect drives from current spikes and reduce harmonics. On VFD outputs, reactors or filters are recommended. For motor wiring up to 100 feet, a motor reactor or output-rated line reactor is acceptable; from 100 to 1,000 feet, an output filter is recommended.
This page will refresh momentarily.
Warning
Some of the selected facets have been selected by the {{ assistanceData.title }} Help.
Resetting/clearing ALL facets will end {{ assistanceData.title }} Help.
![Help icon]()
Selection Assistance - {{ assistanceData.title }}
For part listing and specifications, go to Shop Now
AutomationDirect Line/Load Reactors
AutomationDirect LR/LR2 series reactors provide versatility to function as either line or load reactors for any VFD application. Load-side applications are recommended with wiring lengths of 100 feet or less.
- Line- or load-side use with 230/460/575 VAC three-phase applications up to 370A (300hp @ 460 VAC) protects most three-phase, low-voltage drives and motors
- Line-side use with 120/230 VAC single-phase applications up to 25A (3hp @ 230 VAC) provides added input protection for many single-phase VFDs
- Optional DIN rail mounting for select models simplifies installation
Starting at
(LR2-40P2)
BLOCK USA Line And Motor Reactors
New!
BLOCK USA line and motor reactors deliver economical and high-performance protection for any VFD application. Line and motor-specific designs with broad specifications allow fine-tuning of your application from technical design to cost. Featuring innovative winding technology and a broad voltage and amperage range, these reactors help optimize system performance while reducing power losses and installation costs.
LR3 series line reactors
- Support 200 to 600 VAC three-phase applications up to 250A (225hp @ 460 VAC), providing line protection across a broad range of VFD sizes
- Available with 3% or 5% impedance for general VFD protection, higher harmonic levels, or applications with tighter power-quality requirements
- Lightweight aluminum construction and high-efficiency windings on models rated 80A and higher simplify handling and reduce power losses
NKE series line reactors
- Support 120/230 VAC single-phase applications up to 25A (3hp @ 230 VAC), providing added input protection for many single-phase VFDs
MR3/MDB motor reactors
- Support 200 to 600 VAC three-phase applications up to 110A (100hp @ 460 VAC), helping protect motors from damaging output-side voltage effects
- MDB models rated 72A and higher support 120 Hz output and motor leads up to 150 meters with shielded cable, eliminating the need for a dv/dt filter in some applications
Starting at
(NKE-4/7.33)
AutomationDirect VTF Series Output Filters
VTF series output (dv/dt) filters provide protection against harmful reflected waves between the VFD output and an AC motor. They are recommended when motor protection is critical or when motor wiring distances are over 100 feet and up to 1,000 feet. The filters ensure voltage spikes are limited to below 1,000 V. Output filters also provide other benefits, such as reduced motor heating, increased motor bearing life, and reduced common-mode current.
- Support 208 to 600 VAC applications to protect many VFD-controlled, low-voltage motors
- Current ratings up to 362A accommodate numerous drive and motor combinations
- NEMA 1 versions mount outside the control panel to conserve enclosure space and reduce cooling requirements
Starting at
(VTF-46-DE)
