Allen-Bradley MPL-B320P-SJ72AA Low-Inertia Servo Motor
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Allen-Bradley MPL-B320P-SJ72AA Low-Inertia Servo Motor
The Allen-Bradley MPL-B320P-SJ72AA is a low-inertia brushless AC servo motor from Rockwell Automation’s MP-Series MPL family. Designed for precision motion control, it combines a 5000 RPM rated speed, a single-turn high-resolution encoder, and a keyed shaft for reliable mechanical coupling. Its right-angle SpeedTEC DIN connector can rotate through 180°, providing flexibility when installing the motor in industrial machinery.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | MPL-B320P-SJ72AA |
| Product Type | Low-inertia brushless AC servo motor |
| Product Series | MP-Series MPL |
| Voltage Class | 460 V AC |
| Frame Size | 100 mm (3.94 in.) |
| Magnet Stack Length | 50.8 mm (2.0 in.) |
| Rated Speed | 5000 RPM |
| Continuous Stall Torque | Approximately 3.05 Nm |
| Peak Stall Torque | Approximately 7.91 Nm |
| Continuous Stall Current | Approximately 4.5 A |
| Peak Stall Current | Approximately 14.0 A |
| Feedback Device | Single-turn high-resolution encoder |
| Encoder Protocol | Hiperface |
| Encoder Resolution | 1024 Sin/Cos cycles per revolution |
| Shaft Type | Keyed shaft extension |
| Connector | SpeedTEC DIN, right-angle, 180° rotatable |
| Holding Brake | No brake |
| Mounting | IEC metric, Type FF free mounting holes |
| Enclosure Protection | IP50 minimum without shaft seal; IP66 possible with optional shaft seal and environmentally sealed cable connectors |
| Operating Temperature | 0–40°C |
| Storage Temperature | -30–70°C |
| Relative Humidity | 5–95%, non-condensing |
| Dimensions | 100 mm frame size; 50.8 mm magnet stack length. Overall dimensions depend on the mechanical drawing and should be confirmed before installation. |
| Weight | Approximately 3.7 kg (8.0 lb) |
| UPC | 820919980510 |
FAQ
Q1: What is the Allen-Bradley MPL-B320P-SJ72AA?
It is a low-inertia brushless AC servo motor designed for precise speed, position, and torque control in industrial automation systems.
Q2: What is the rated speed of this servo motor?
The rated speed is 5000 RPM, making it suitable for applications requiring responsive and accurate motion.
Q3: Does the MPL-B320P-SJ72AA include a holding brake?
No. This model is supplied without an integrated holding brake. Applications requiring brake-based holding should use a compatible brake-equipped model.
Q4: What feedback system does it use?
The motor uses a single-turn high-resolution encoder with Hiperface feedback, supporting accurate position and motion control.
Q5: What type of shaft does this model have?
It has a keyed shaft extension, which helps transmit torque through a compatible coupling or mechanical drive connection.
Q6: Which connector is fitted to the motor?
It uses a right-angle SpeedTEC DIN connector that can rotate through 180°, helping accommodate different cable-routing and installation requirements.
Q7: What are its dimensions and weight?
The motor has a 100 mm frame and a 50.8 mm magnet stack, with a listed weight of approximately 3.7 kg. Check the model-specific mechanical drawing for the complete overall dimensions and mounting clearances.
Q8: What should be checked before replacing or installing this motor?
Confirm the voltage class, servo-drive compatibility, encoder feedback requirements, shaft and coupling dimensions, connector and cable compatibility, mounting arrangement, and whether the application requires a holding brake. Also inspect the motor nameplate and mechanical drawing before commissioning.
Allen-Bradley MPL-B320P-SJ72AA Low-Inertia Servo Motor is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








