Description
📌 Product Overview
The B&R 8LSA75.DB030S100-3 is an 8LS series synchronous servo motor designed for industrial motion-control applications. It is a self-cooled motor rated for 400 VAC, with a nominal speed of 3000 rpm and nominal torque of 30 Nm.
According to B&R’s official technical data, this model provides 9.425 kW nominal power, 18.4 A nominal current, and a maximum speed of 4500 rpm. The motor uses a single-cable connection, a key-type shaft end, and a DB 2.2 inductive 32-line multi-turn encoder.
The model is associated with UL certification reference E360421 and is compatible with selected B&R ACOPOS, ACOPOSmulti, and ACOPOS P3 drive configurations.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | B&R |
| Model | 8LSA75.DB030S100-3 |
| Product Type | Synchronous Servo Motor |
| Series | 8LS |
| Rated Voltage | 400 VAC |
| Rated Speed | 3000 rpm |
| Maximum Speed | 4500 rpm |
| Rated Torque | 30 Nm |
| Stall Torque | 43 Nm |
| Maximum Torque | 187 Nm |
| Rated Power | 9.425 kW |
| Rated Current | 18.4 A |
| Stall Current | 26.38 A |
| Maximum Current | 169 A |
| Number of Pole Pairs | 5 |
| Torque Constant | 1.63 Nm/A |
| Stator Resistance | 0.21 Ω |
| Stator Inductance | 3.9 mH |
| Cooling | Self-cooled |
| Connection | Single-cable solution |
| Encoder | DB 2.2 inductive, 32-line multi-turn |
| Shaft End | Key |
| Shaft Key | d=28 mm, k6 × 58 mm |
| Centering Diameter | 180 mm, j6 |
| Flange Size | 190 mm square |
| Brake Holding Torque | 0 Nm |
| Motor Weight | Approx. 28 kg without brake |
| Efficiency | 96.9% |
| UL Reference | E360421 |
| Other Part Number | M3B61419399 |
Technical values above are based primarily on B&R’s published model data.
🔧 Key Features
- 8LS series synchronous servo motor
- 400 VAC motor design
- 30 Nm nominal torque
- 9.425 kW nominal output
- 3000 rpm rated operating speed
- Up to 4500 rpm maximum speed
- 43 Nm stall torque
- 187 Nm maximum torque
- Self-cooled construction
- Single-cable connection
- Multi-turn encoder feedback
- Keyed shaft design
- 180 mm centering diameter
- 190 mm flange square
- UL certification reference E360421
- Suitable for B&R ACOPOS-based motion-control systems
🔌 Recommended B&R Drive Families
B&R lists the following drive families for this motor configuration:
- ACOPOS 8Vxxxx.xx… — recommended type 1320
- ACOPOSmulti 8BVIxxxx… — recommended type 0330
- ACOPOS P3 8EIxxxx… — recommended type 034X
The recommended motor cable cross section is 4 mm², with connector size 1.
These recommendations should be checked against the complete machine configuration before installation. A related ACOPOS drive should not be treated as an automatic replacement simply because it appears in the B&R recommendation list.
🏭 Typical Applications
The 8LSA75.DB030S100-3 is suited to industrial machinery requiring controlled speed, torque and positioning. Typical application areas include:
- Industrial machine tools
- Automated production machinery
- Packaging equipment
- Material handling systems
- Robotics and positioning equipment
- High-performance conveyor systems
- Printing and converting machinery
- Servo-driven production lines
- Industrial motion-control systems
The 30 Nm nominal torque and 9.425 kW rated power make it suitable for applications where both continuous torque and dynamic acceleration are important.
📐 Mechanical Information
B&R specifies a 180 mm j6 centering diameter and a 190 mm square flange. The shaft uses a keyed design with a 28 mm k6 shaft key specification and 58 mm key length. The published motor weight is approximately 28 kg without a brake.
Before installation, compare the physical motor dimensions, shaft geometry, flange mounting pattern, connector orientation and encoder configuration with the existing motor.
❓ Frequently Asked Questions
Q: What voltage is this servo motor rated for?
A: B&R specifies this model as a 400 VAC synchronous motor.
Q: What is the rated speed?
A: The nominal speed is 3000 rpm, with a maximum speed of 4500 rpm.
Q: What is the rated torque?
A: The nominal torque is 30 Nm, while the published stall torque is 43 Nm.
Q: Does it have a holding brake?
A: This particular configuration has a brake holding torque of 0 Nm. The official specification lists no brake mass.
Q: What encoder does it use?
A: The model is specified with a DB 2.2 inductive 32-line multi-turn encoder, identified as EQI 1331 FS ENDAT22 in the detailed B&R configuration data.
Q: What does E360421 refer to?
A: E360421 is the UL certification reference associated with the B&R 8LS motor family; it is also shown in product listings as an additional part/reference number.
Q: Is this motor a direct replacement for another 8LS motor?
A: Not automatically. Motor replacement should be confirmed by voltage, torque, speed, encoder, shaft, flange, connector and drive configuration.
📦 Identification & Ordering Information
When ordering or replacing this motor, verify the complete nameplate and part number:
- B&R: 8LSA75.DB030S100-3
- Other Part Number: M3B61419399
- Certification Reference: E360421
- Rated Voltage: 400 VAC
- Rated Speed: 3000 rpm
- Rated Torque: 30 Nm
For used or surplus equipment, the actual nameplate, connector condition, shaft condition, encoder feedback and mechanical mounting should be checked against the requirements of the installation.
🔗 Related B&R 8LS Servo Motor Models
The following are related B&R 8LS motor configurations that may be encountered in industrial automation systems:
- 8LSA75 series
- 8LSA series
- 8LSC series
- 8LSO series
- 8LSP series
- 8LS synchronous motor series
- ACOPOS-compatible 8LS motors
- ACOPOSmulti-compatible 8LS motors
- ACOPOS P3-compatible 8LS motors
- 8LS motor version -3 configurations
These are related models or product families, not confirmed direct substitutes. Exact replacement selection should be based on the complete B&R motor configuration and machine requirements.
