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Allen-Bradley 1321-3R55-B
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 1321-3R55-B is a robust 3-phase line reactor designed to improve power quality, protect sensitive AC drives, and significantly reduce harmonic distortion in various industrial environments. With its precise 55A current rating and 3% impedance, this component effectively minimizes damaging voltage spikes and curbs electrical noise. By mitigating these common power issues, the 1321-3R55-B plays a crucial role in extending the operational lifespan of motors, drives, and other connected industrial machinery. It stands as an ideal solution for a broad spectrum of industrial automation and motor control applications, providing enhanced reliability and optimizing overall system performance.Key Features Optimal 3-Phase Line Reactor: Delivers crucial protection for AC drives and motors against harmful power fluctuations and transients. Precision 55A Current Rating: Perfectly suited for demanding industrial power applications, ensuring stable and efficient operation. Efficient 3% Impedance: Masterfully reduces harmonic distortion and dramatically improves the overall power quality of your system. Voltage Spike Minimization: Shields valuable equipment from transient overvoltage, preventing costly damage and downtime. Enhanced Motor & Drive Efficiency: Significantly reduces electrical noise and harmful inrush currents, leading to smoother and more efficient operation. Durable Industrial Design: Built to endure the demands of harsh industrial environments, ensuring long-term reliability and performance. Harmonic Mitigation: Actively filters out unwanted harmonics, leading to a cleaner and more stable power supply. Technical Specifications Model: 1321-3R55-B Series: 1321 Line Reactors Phase: 3-Phase Current Rating: 55A Impedance: 3% Application: AC Drive Protection, Harmonic Mitigation, Power Quality Improvement Mounting: Panel/DIN Rail Applications Industrial Motor Control Systems: Optimizes motor performance, increases efficiency, and significantly extends longevity by protecting against power irregularities. AC Drive Protection: Reduces electrical stress on Variable Frequency Drives (VFDs), preventing premature failure and ensuring consistent operation. Power Quality Improvement: Minimizes total harmonic distortion (THD) and voltage transients, resulting in a cleaner and more reliable power supply. Manufacturing & Automation Equipment: Ensures the smooth, uninterrupted operation and enhanced reliability of critical production machinery. Commercial HVAC Systems: Protects large motors and drives, improving energy efficiency and reducing maintenance costs. Water/Wastewater Treatment Facilities: Safeguards pumps and motor controls from electrical disturbances, ensuring continuous operation. Why Choose Unmatched Reliability: As an Allen-Bradley product, the 1321-3R55-B guarantees industrial-grade reliability and performance, trusted by professionals worldwide. Superior Equipment Protection: Provides an essential layer of defense for your expensive motors and AC drives, safeguarding them from detrimental power anomalies. Significant Cost Savings: By extending equipment life and reducing maintenance needs, this line reactor offers substantial long-term operational cost benefits. Enhanced System Performance: Improves overall power quality, leading to more stable operations and increased efficiency across your entire power system. Easy Integration: Designed for straightforward panel or DIN rail mounting, ensuring simple installation into existing industrial setups. Optimized for AC Drives: Specifically engineered to work seamlessly with AC drives, mitigating common issues like harmonic distortion and voltage spikes effectively. Order NowInvest in the Allen-Bradley 1321-3R55-B 3-phase line reactor today and significantly enhance the power quality and protection of your industrial systems. Benefit from fast shipping and worldwide delivery options. Explore our full range of Allen-Bradley products.FAQWhat is the primary function of the Allen-Bradley 1321-3R55-B?The main purpose of this line reactor is to enhance power quality, protect AC drives and motors from electrical disturbances, and reduce harmonic distortion in industrial settings.What is the current rating of this line reactor?The 1321-3R55-B has a current rating of 55 Amperes.How does this product extend equipment life?By minimizing voltage spikes, reducing electrical noise, and mitigating harmonic distortion, it protects connected equipment from stress, thereby extending their operational lifespan.Is the 1321-3R55-B suitable for all industrial applications?It is ideal for a wide range of industrial applications, particularly those involving AC motor control systems, AC drive protection, and general power quality improvement.What are the mounting options for this specific model?This unit can be installed using either panel or DIN rail mounting methods for flexible integration.
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Allen-Bradley 1321-3R55-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:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- 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: 1321-3R55-B
- Series: 1321 Line Reactors
- Phase: 3-Phase
- Current Rating: 55A
- Impedance: 3%
- Application: AC Drive Protection, Harmonic Mitigation, Power Quality Improvement
- Mounting: Panel/DIN Rail
Applications
- Industrial Motor Control Systems: Optimizes motor performance, increases efficiency, and significantly extends longevity by protecting against power irregularities.
- AC Drive Protection: Reduces electrical stress on Variable Frequency Drives (VFDs), preventing premature failure and ensuring consistent operation.
- Power Quality Improvement: Minimizes total harmonic distortion (THD) and voltage transients, resulting in a cleaner and more reliable power supply.
- Manufacturing & Automation Equipment: Ensures the smooth, uninterrupted operation and enhanced reliability of critical production machinery.
- Commercial HVAC Systems: Protects large motors and drives, improving energy efficiency and reducing maintenance costs.
- Water/Wastewater Treatment Facilities: Safeguards pumps and motor controls from electrical disturbances, ensuring continuous operation.
Why Choose the 1321-3R55-B?
- Unmatched Reliability: As an Allen-Bradley product, the 1321-3R55-B guarantees industrial-grade reliability and performance, trusted by professionals worldwide.
- Superior Equipment Protection: Provides an essential layer of defense for your expensive motors and AC drives, safeguarding them from detrimental power anomalies.
- Significant Cost Savings: By extending equipment life and reducing maintenance needs, this line reactor offers substantial long-term operational cost benefits.
- Enhanced System Performance: Improves overall power quality, leading to more stable operations and increased efficiency across your entire power system.
- Easy Integration: Designed for straightforward panel or DIN rail mounting, ensuring simple installation into existing industrial setups.
- Optimized for AC Drives: Specifically engineered to work seamlessly with AC drives, mitigating common issues like harmonic distortion and voltage spikes effectively.
Availability & Shipping
- ▸In stock: 1321-3R55-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 1321-3R55-B ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
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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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
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.