Allen-Bradley MPL-B320P-SJ74AA Low-Inertia Servo Motor
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| [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-SJ74AA Low-Inertia Servo Motor
The Allen-Bradley MPL-B320P-SJ74AA is a low-inertia brushless AC servo motor from Rockwell Automation’s MP-Series MPL family. Designed for precision motion control in industrial automation, it combines a 5000 RPM rated speed, a single-turn high-resolution encoder, a keyed shaft, and an integrated 24 V DC holding brake. Its rotatable SpeedTEC DIN connector also provides flexibility for installation and cable routing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | MPL-B320P-SJ74AA |
| Product Type | Low-inertia brushless AC rotary 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 |
| Maximum Speed | 5000 RPM |
| Continuous Rated Power | Approximately 1.5 kW |
| Continuous Stall Torque | Approximately 3.05 Nm |
| Peak Torque | Approximately 7.91 Nm |
| Feedback Device | Single-turn high-resolution encoder |
| Feedback Resolution | 1024 Sin/Cos cycles per revolution |
| Feedback Protocol | Hiperface |
| Shaft Type | Keyed shaft extension |
| Holding Brake | Integrated 24 V DC brake |
| Connector | SpeedTEC DIN, right-angle, 180° rotatable |
| Mounting | IEC metric flange, Type FF free mounting holes |
| Shaft Seal | Not included as standard |
| Protection Rating | IP50 |
| Operating Temperature | 0–40°C |
| Storage Temperature | -30–70°C |
| Relative Humidity | 5–95%, non-condensing |
| Dimensions | 100 mm frame size and 50.8 mm magnet stack length; confirm overall dimensions using the model-specific mechanical drawing |
| Weight | Approximately 3.7 kg (8.2 lb); confirm against the product documentation for the supplied unit |
| UPC | 820919980527 |
FAQ
Q1: What is the Allen-Bradley MPL-B320P-SJ74AA?
It is a low-inertia brushless AC servo motor designed for precise position, speed, and torque control in automated machinery.
Q2: What is the rated speed of this motor?
The rated speed is 5000 RPM. The final operating range depends on the compatible servo drive and the application requirements.
Q3: Does the MPL-B320P-SJ74AA include a holding brake?
Yes. This model includes an integrated 24 V DC holding brake, which can help hold a load when the motor is not actively driving it. The brake is intended for holding rather than routine dynamic stopping.
Q4: What feedback system does it use?
It uses a single-turn high-resolution encoder with Hiperface feedback and 1024 Sin/Cos cycles per revolution for motion feedback.
Q5: What type of shaft does this model have?
It features a keyed shaft extension, which provides a mechanical connection for compatible couplings and driven equipment.
Q6: Which connector is used on this servo motor?
It uses a right-angle SpeedTEC DIN connector that can rotate through 180 degrees, allowing more flexible cable routing in compact machine installations.
Q7: What are the dimensions and weight of the MPL-B320P-SJ74AA?
The motor has a 100 mm frame and a 50.8 mm magnet stack. Its listed weight is approximately 3.7 kg, although supplier listings can differ. For installation or replacement, use the model-specific mechanical drawing to verify the complete dimensions and mounting clearances.
Q8: What should be checked before replacing this motor?
Verify the complete part number, servo-drive compatibility, voltage class, encoder feedback, keyed shaft dimensions, connector and cable compatibility, mounting arrangement, and 24 V DC brake requirements. Confirm the nameplate and mechanical drawing before installation and commissioning.
Allen-Bradley MPL-B320P-SJ74AA 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.








