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A-B MPL-A420P-HJ72AA Servo Motor

Product Overview

The Allen-Bradley MPL-A420P-HJ72AA is an MP-Series low-inertia brushless AC rotary servo motor designed for high-performance industrial motion control. It features a 230V-class power rating, 5000 RPM rated speed, an incremental encoder, and a keyed shaft for precise motion and positioning applications. This model has no holding brake and uses a right-angle SpeedTEC DIN connector.

Key Technical Specifications

Parameter	Specification
Brand	Allen-Bradley (A-B)
Model	MPL-A420P-HJ72AA
Product Series	MP-Series MPL
Product Type	Low-Inertia AC Servo Motor
Motor Type	Brushless Permanent-Magnet Synchronous
Voltage Class	200V
Rated Input Voltage	230V AC, 3-phase
Rated Power	2.0 kW
Rated Speed	5,000 RPM
Continuous Stall Torque	4.74 N·m
Peak Stall Torque	10.2 N·m
Continuous Stall Current	12.7 A (0-peak)
Feedback	2,000-line incremental encoder
Frame Size	115 mm
Magnet Stack Length	50.8 mm (2.0 in.)
Shaft	Keyed shaft, no shaft seal
Brake	No holding brake
Connector	Right-angle SpeedTEC DIN, 180° rotatable
Mounting	IEC metric flange
Lifecycle Status	Discontinued

Specifications are based on manufacturer and technical reference information.

GlobalSpec

Features and Advantages

Low-inertia design for rapid acceleration and deceleration.
Brushless motor construction for precise servo motion control.
Incremental encoder feedback for accurate position and speed control.
Keyed shaft for secure mechanical coupling.
Rotatable SpeedTEC connector for flexible cable routing.
Compact design suitable for high-performance automation systems.

Typical Applications

Packaging and material handling machinery
Industrial positioning systems
Electronic assembly equipment
Converting and processing machinery
Automated manufacturing lines

Important Notes

Discontinued: Rockwell Automation lists this model as discontinued effective July 23, 2024. The manufacturer identifies MPL-A420P-SJ72AA as an engineering replacement; verify mechanical, electrical, and feedback compatibility before substitution.

US
This motor has no holding brake and is supplied without a shaft seal.
A compatible servo drive and feedback cable are required.
Confirm the nameplate, connector condition, and shaft condition before ordering.