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Allen-Bradley MPL-B420P-MJ72AA Low-Inertia Brushless Servo Motor

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Allen-Bradley MPL-B420P-MJ72AA

by Allen-Bradley

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OverviewElevate your industrial automation with the Allen-Bradley MPL-B420P-MJ72AA Low-Inertia Brushless Servo Motor, engineered for applications demanding exceptional speed, precision, and dynamic control. This high-performance servo motor, a part of Allen-Bradley's esteemed MPL series, is a cornerstone for advanced motion systems, providing precise feedback and robust operation in the most demanding environments. Its low-inertia design enables rapid acceleration and deceleration, making it an ideal choice for packaging machinery, robotics, and material handling systems where swift and accurate movements are critical. The brushless construction ensures a long lifespan and minimal maintenance, guaranteeing continuous operation and reducing total cost of ownership. Integrated with a multi-turn high-resolution encoder, this motor offers absolute feedback, translating to unparalleled positional accuracy for your critical processes.Key Features Low-Inertia Design: Achieve rapid acceleration and deceleration, ideal for dynamic operations. Brushless Technology: Benefit from a maintenance-free motor with extended longevity and reliability. Optimal Voltage Compatibility (460V AC): Seamlessly integrates with standard North American industrial power infrastructure. High-Speed Performance (5000 RPM): Attain superior throughput in applications requiring rapid and sustained rotational speeds. Multi-turn High-Resolution Absolute Encoder: Ensures pinpoint accuracy and reliable position feedback for critical control loops. Efficient Connectivity (SpeedTEC DIN, Right Angle, 180° Rotatable): Simplifies wiring and offers flexible cable routing. Robust Mechanical Integration (Keyed Shaft & IEC Metric Mounting): Provides a secure connection and standard mounting for easy setup. Technical Specifications Manufacturer: Allen-Bradley (Rockwell Automation) Series: MPL Model: MPL-B420P-MJ72AA Motor Type: Brushless Servo Motor Inertia: Low Voltage: 460V AC Speed: 5000 RPM Encoder Type: Multi-turn High-resolution (Absolute Feedback) Frame Size: 4 (115 mm / 4.53 in.) Stack Length: 20 (50.8 mm / 2.0 in.) Shaft Extension: Keyed Connector Type: SpeedTEC DIN, Right Angle, 180° Rotatable (Quick Connect) Brake: None Mounting: IEC Metric, Free Mounting Holes (Type FF) ApplicationsThe Allen-Bradley MPL-B420P-MJ72AA Servo Motor excels in a diverse range of demanding motion control scenarios, including: Advanced Packaging Machinery: Facilitates high-speed, precise material handling, reducing cycle times and boosting output. Robotics and Automation: Powers robotic arms and automated systems, enabling fluid, accurate, and repeatable movements. Material Handling Systems: Optimizes conveyor systems, sorters, and pick-and-place units with dynamic response and positional accuracy. Printing and Converting Equipment: Ensures precise web tension control and accurate registration for high-quality processes. High-Speed Assembly Lines: Drives critical components in automated assembly, where rapid, synchronized, and precise movements are essential. Why ChooseThis model offers unrivaled performance and value: Superior Performance: Its low-inertia and high-speed capabilities directly translate to faster cycle times and enhanced operational efficiency. Unmatched Control Accuracy: The integrated high-resolution absolute encoder guarantees precise and repeatable movements, minimizing errors and waste. Simplified Integration: Designed with industry-standard features for straightforward setup and connectivity. Order NowFor inquiries or to place an order, please contact our sales team.FAQWhat types of applications benefit most from low-inertia servo motors?Low-inertia servo motors are ideal for applications requiring rapid acceleration and deceleration, such as packaging, robotics, and material handling, where quick, precise movements are crucial.What is the advantage of a brushless servo motor?Brushless technology in servo motors offers several benefits, including longer lifespan, reduced maintenance requirements, and reliable operation, contributing to a lower total cost of ownership.What does a multi-turn high-resolution absolute encoder provide?A multi-turn high-resolution absolute encoder provides exact positional feedback, ensuring exceptional accuracy and repeatability in critical control loops, even after power cycles.

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PRODUCT DETAILS

Allen-Bradley MPL-B420P-MJ72AA

Overview

This is a genuine Allen-Bradley component from the Allen-Bradley Servo Motors family. 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
  • Engineered to integrate inside Allen-Bradley Servo Motors installations

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 for the Allen-Bradley Servo Motors family

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

Technical Specifications

  • Manufacturer: Allen-Bradley (Rockwell Automation)
  • Series: MPL
  • Model: MPL-B420P-MJ72AA
  • Motor Type: Brushless Servo Motor
  • Inertia: Low
  • Voltage: 460V AC
  • Speed: 5000 RPM
  • Encoder Type: Multi-turn High-resolution (Absolute Feedback)
  • Frame Size: 4 (115 mm / 4.53 in.)
  • Stack Length: 20 (50.8 mm / 2.0 in.)
  • Shaft Extension: Keyed
  • Connector Type: SpeedTEC DIN, Right Angle, 180° Rotatable (Quick Connect)
  • Brake: None
  • Mounting: IEC Metric, Free Mounting Holes (Type FF)

Applications

The Allen-Bradley MPL-B420P-MJ72AA Servo Motor excels in a diverse range of demanding motion control scenarios, including:

  • Advanced Packaging Machinery: Facilitates high-speed, precise material handling, reducing cycle times and boosting output.
  • Robotics and Automation: Powers robotic arms and automated systems, enabling fluid, accurate, and repeatable movements.
  • Material Handling Systems: Optimizes conveyor systems, sorters, and pick-and-place units with dynamic response and positional accuracy.
  • Printing and Converting Equipment: Ensures precise web tension control and accurate registration for high-quality processes.
  • High-Speed Assembly Lines: Drives critical components in automated assembly, where rapid, synchronized, and precise movements are essential.

Why Choose the MPL-B420P-MJ72AA?

This model offers unrivaled performance and value:

  • Superior Performance: Its low-inertia and high-speed capabilities directly translate to faster cycle times and enhanced operational efficiency.
  • Unmatched Control Accuracy: The integrated high-resolution absolute encoder guarantees precise and repeatable movements, minimizing errors and waste.
  • Simplified Integration: Designed with industry-standard features for straightforward setup and connectivity.

Availability & Shipping

  • In stock: MPL-B420P-MJ72AA 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 MPL-B420P-MJ72AA ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

Low-inertia servo motors are ideal for applications requiring rapid acceleration and deceleration, such as packaging, robotics, and material handling, where quick, precise movements are crucial.

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.

CUSTOMER REVIEWS

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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.

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