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Allen-Bradley 1321-3R18-B 3-Phase Line Reactor for AC Drives

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Allen-Bradley 1321-3R18-B

by Allen-Bradley

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OverviewThe Allen-Bradley 1321-3R18-B is a expertly designed 3-phase line reactor, crucial for ensuring stable and efficient operation of AC drive systems. This robust component is essential in industrial settings where power quality directly impacts the lifespan of equipment and overall operational reliability. By diligently reducing harmful harmonics, mitigating transient voltage spikes, and optimizing system efficiency, the 1321-3R18-B protects your valuable motor drives and industrial automation infrastructure. Its open-style construction not only allows for simple integration into existing setups but also guarantees optimal thermal management, promoting enhanced performance and extended operational life. With an 18A current rating, 1.5mH inductance, and a precisely calibrated 3% impedance, this line reactor is ideally suited for a broad range of medium-power industrial applications. It serves as a vital buffer, safeguarding sensitive electronics from the unpredictable nature of industrial power grids and significantly contributing to a more stable and predictable operational output.Key Features Advanced 3-Phase Line Reactor: Specifically engineered to optimize power quality and maintain unwavering stability for AC drive systems, minimizing disruptions. Robust 18A Current Rating: Perfectly suited for demanding medium-power industrial applications, providing reliable performance under various load conditions. Precision 1.5mH Inductance & 3% Impedance: Expertly crafted to effectively reduce harmonic distortion and limit damaging voltage transients, preserving connected equipment. Superior Protection for AC Drives & Motors: Significantly extends the operational lifespan of your critical machinery by actively minimizing electrical stress and wear. Optimized Open-Style Design: Facilitates efficient thermal management and simplifies integration into diverse industrial control cabinets, enhancing versatility. Enhanced System Efficiency: Contributes to overall energy savings by ensuring cleaner power delivery and reducing energy losses associated with harmonics. Reliable Performance: Built to Allen-Bradley's stringent quality standards, ensuring consistent and dependable operation in challenging industrial environments. Technical Specifications Model: 1321-3R18-B Type: Line Reactor Phase: 3-Phase Current Rating: 18A Inductance: 1.5mH Impedance: 3% Mounting Style: Open-Style Application: AC drive protection, harmonic reduction, voltage stabilization, motor protection Applications AC Motor Drive Protection: Indispensable for mitigating inrush current and reducing detrimental electrical harmonics, ensuring smooth and consistent motor operation. Industrial Power Distribution Networks: Crucial for maintaining stable voltage levels and impeccable power quality across expansive industrial infrastructures. Manufacturing & Processing Plants: Provides essential support for consistent and reliable motor operation in high-stakes production environments. HVAC & Pump Systems: Effectively minimizes undesirable electrical noise and transient voltage fluctuations, leading to quieter and more efficient operation. Robotics and Automation: Protects sensitive control systems and motors in robotic applications from power disturbances, ensuring precision and uptime. Material Handling Systems: Enhances the reliability and longevity of conveyor systems and other material handling equipment by stabilizing power. Why Choose Allen-Bradley 1321-3R18-B?Choosing the Allen-Bradley 1321-3R18-B line reactor represents an investment in unparalleled power quality and extended equipment life for your industrial operations. This high-quality component embodies Allen-Bradley's dedication to robust engineering and dependable performance. Unmatched Harmonic Reduction: Substantially reduces voltage and current harmonics, preventing overheating and premature failure of motors and drives. Superior Transient Suppression: Acts as a robust shield against damaging voltage spikes and sags, protecting sensitive electronics. Order NowUpgrade your industrial power system with the Allen-Bradley 1321-3R18-B line reactor. Contact our sales team today for pricing and availability, and take the first step towards a more reliable and efficient operation.FAQWhat is the primary function of the Allen-Bradley 1321-3R18-B?The primary function is to optimize power quality and ensure stability for AC drive systems by reducing harmonics and mitigating voltage transients.What types of applications benefit most from this line reactor?This line reactor is ideal for applications such as AC motor drive protection, industrial power distribution, manufacturing plants, HVAC and pump systems, robotics, automation, and material handling systems.

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PRODUCT DETAILS

Allen-Bradley 1321-3R18-B

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 1321-3R18-B
  • Type: Line Reactor
  • Phase: 3-Phase
  • Current Rating: 18A
  • Inductance: 1.5mH
  • Impedance: 3%
  • Mounting Style: Open-Style
  • Application: AC drive protection, harmonic reduction, voltage stabilization, motor protection

Applications

  • AC Motor Drive Protection: Indispensable for mitigating inrush current and reducing detrimental electrical harmonics, ensuring smooth and consistent motor operation.
  • Industrial Power Distribution Networks: Crucial for maintaining stable voltage levels and impeccable power quality across expansive industrial infrastructures.
  • Manufacturing & Processing Plants: Provides essential support for consistent and reliable motor operation in high-stakes production environments.
  • HVAC & Pump Systems: Effectively minimizes undesirable electrical noise and transient voltage fluctuations, leading to quieter and more efficient operation.
  • Robotics and Automation: Protects sensitive control systems and motors in robotic applications from power disturbances, ensuring precision and uptime.
  • Material Handling Systems: Enhances the reliability and longevity of conveyor systems and other material handling equipment by stabilizing power.

Why Choose the 1321-3R18-B?

Choosing the Allen-Bradley 1321-3R18-B line reactor represents an investment in unparalleled power quality and extended equipment life for your industrial operations. This high-quality component embodies Allen-Bradley's dedication to robust engineering and dependable performance.

  • Unmatched Harmonic Reduction: Substantially reduces voltage and current harmonics, preventing overheating and premature failure of motors and drives.
  • Superior Transient Suppression: Acts as a robust shield against damaging voltage spikes and sags, protecting sensitive electronics.

Availability & Shipping

  • In stock: 1321-3R18-B ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1321-3R18-B ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The primary function is to optimize power quality and ensure stability for AC drive systems by reducing harmonics and mitigating voltage transients.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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