Product Introduction

The MPL-B330P-MJ22AA is designed for machine builders and maintenance teams working with Allen Bradley MP-Series motion systems. Its low-inertia rotor design allows the motor to respond quickly to changes in command speed and position, which is valuable in high-cycle automated machinery.

The combination of a 100 mm frame, 1.8 kW rated power, 4.18 Nm torque rating, 5000 RPM speed capability, and multi-turn absolute feedback gives this motor a strong fit for demanding motion applications.

The keyed shaft and brake-free configuration also make it easy to distinguish from closely related MPL-B330P models. When selecting a replacement, these configuration details should be checked carefully rather than relying only on the MPL-B330P family designation.

Technical Specifications

Specification	MPL-B330P-MJ22AA
Manufacturer	Allen Bradley / Rockwell Automation
Product Series	MP-Series MPL
Product Type	Low-Inertia Brushless Servo Motor
Motor Type	Permanent-Magnet Rotary Servo Motor
Voltage Class	400 V AC
Voltage Rating	460 V AC
Frame Size	100 mm
Magnet Stack Length	76.2 mm (3.0 in.)
Rated Speed	5000 RPM
Rated Power	1.8 kW
Torque Rating	4.18 Nm
Feedback	Multi-Turn High-Resolution Absolute Encoder
Shaft	Keyed Shaft Extension
Shaft Seal	No Shaft Seal
Brake	No Brake
Connector	Circular Bayonet, Right-Angle
Connector Rotation	180° Rotatable
Mounting Flange	IEC Metric
Mounting Holes	Type FF, Free Mounting Holes
Weight	4.60 kg / 10.14 lb
Dimensions	Refer to the applicable mechanical drawing for final installation dimensions

Recommended Related Models

Model	Product Type	Main Configuration
MPL-B330P-MJ24AA	Servo Motor	Multi-turn high-resolution encoder, keyed shaft, 24 V DC brake
MPL-B330P-MK22AA	Servo Motor	Multi-turn high-resolution encoder, keyless shaft, no brake
MPL-B330P-MK24AA	Servo Motor	Multi-turn high-resolution encoder, keyless shaft, 24 V DC brake
MPL-B330P-SJ22AA	Servo Motor	Single-turn high-resolution encoder, keyed shaft, no brake
MPL-B330P-SJ24AA	Servo Motor	Single-turn high-resolution encoder, keyed shaft, 24 V DC brake

Popular Related Models

For MP-Series replacement and retrofit projects, these models are useful alternatives or comparison points:

MPL-B330P-MJ24AA — similar multi-turn feedback configuration with a 24 V DC holding brake
MPL-B330P-MK22AA — multi-turn encoder with a keyless shaft and no brake
MPL-B330P-MK24AA — multi-turn encoder, keyless shaft, and 24 V DC brake
MPL-B330P-MJ72AA — related 100 mm-frame MPL configuration with a different connector/feedback-generation configuration
MPL-B330P-SJ22AA — single-turn high-resolution encoder and keyed shaft
MPL-B330P-HJ22AA — related 100 mm-frame configuration with encoder feedback and keyed shaft

When replacing an MPL-B330P-MJ22AA, the most important selection points are the multi-turn feedback requirement, keyed shaft, 460 V-class electrical characteristics, 5000 RPM rating, and absence of a factory holding brake.

Applications and Motion-Control Uses

The MPL-B330P-MJ22AA is suitable for applications requiring fast, repeatable, closed-loop motion control, including:

Packaging and filling equipment
Material handling systems
Automated assembly machines
Printing and converting machinery
Electronic manufacturing equipment
Machine tools
Pick-and-place systems
Conveyor positioning
High-speed indexing equipment
Industrial automation production lines

Its multi-turn absolute feedback is especially useful in applications where the control system needs reliable position information across multiple motor revolutions.

Advantages of the MPL-B330P-MJ22AA

High-speed servo operation
The motor is rated for 5000 RPM, allowing it to support fast positioning and high-cycle machine operation.

Multi-turn absolute feedback
The integrated multi-turn high-resolution encoder provides absolute position information and can improve positioning performance in applications where accurate rotational feedback is important.

100 mm frame with 3-inch stack
The 100 mm frame and 76.2 mm magnet stack provide a useful balance between motor size and torque output.

4.18 Nm torque capability
The motor provides a 4.18 Nm torque rating, making it appropriate for a broad range of medium-duty motion applications.

Keyed shaft extension
The keyed shaft provides a positive mechanical interface for compatible couplings, pulleys, and other transmission components.

Flexible connector orientation
The circular bayonet connector uses a right-angle configuration and can be rotated up to 180 degrees, helping simplify cable routing inside compact machine designs.

Brake-free configuration
The no-brake configuration can be advantageous for horizontal axes and applications where a mechanical holding brake is not required.

Technical FAQs

1. What type of servo motor is the MPL-B330P-MJ22AA?
It is an MP-Series low-inertia brushless permanent-magnet rotary servo motor designed for closed-loop industrial motion control.

2. What voltage class is used by this motor?
The MPL-B330P-MJ22AA belongs to the 400 V AC class and is commonly specified with a 460 V AC voltage class.

3. What is the rated speed of the MPL-B330P-MJ22AA?
The motor has a rated speed of 5000 RPM. Actual operating speed depends on the servo drive, load, acceleration profile, and application configuration.

4. What type of feedback does this motor use?
It uses a multi-turn high-resolution absolute encoder. This provides the motion controller with detailed rotational position feedback for closed-loop servo operation.

5. Does the MPL-B330P-MJ22AA have a holding brake?
No. This model is supplied without a brake. Applications requiring shaft holding should use an appropriate external mechanical solution or consider a brake-equipped motor such as the MPL-B330P-MJ24AA.

6. Does this servo motor have a keyed shaft?
Yes. The MPL-B330P-MJ22AA uses a keyed shaft extension and does not use a shaft seal.

7. What is the magnet stack length?
The motor has a 30-series magnet stack with a length of 76.2 mm, equivalent to 3.0 inches.

8. Which servo drives can be used with this motor?
The MPL-B330P-MJ22AA belongs to the MP-Series family and can be used with compatible Allen Bradley motion platforms such as Kinetix and other supported servo-drive systems, provided the motor, feedback, voltage, and drive configuration are correctly matched.

9. What should be checked when replacing this motor?
Engineers should compare the frame size, magnet stack length, voltage class, feedback technology, shaft configuration, connector arrangement, brake configuration, and drive compatibility. A motor with a similar physical size is not necessarily an electrically compatible replacement.

10. Is the MPL-B330P-MJ22AA suitable for high-precision positioning?
Yes. Its low-inertia construction and multi-turn high-resolution absolute feedback make it suitable for applications requiring repeatable positioning, controlled acceleration, and accurate speed regulation.

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