Reliable Motion Control for Demanding Applications
From a maintenance engineer's perspective, the B&R 8LSC44.ee060ffgg-4 three-phase synchronous servo motor stands out for its robust construction and ease of integration. This permanent-magnet, electronically commutated motor is designed for applications that require excellent dynamic characteristics, positioning precision, compact size, and reduced weight. Its large overload capacity ensures that it can handle peak demands without compromising performance, making it a dependable choice for continuous industrial operation.
The motor's externally fan-cooled design (IC4A0A6) helps maintain stable thermal performance even under sustained loads. With a nominal speed of 6000 rpm and a maximum speed of 6600 rpm, it delivers the speed range needed for high-throughput machinery. The 8LSC44.ee060ffgg-4 also features a single-cable (hybrid) solution option, simplifying wiring and reducing installation time—a significant advantage for maintenance teams looking to minimize downtime.
Key Technical Specifications of the 8LSC44.ee060ffgg-4
Understanding the motor's specifications is crucial for proper selection and maintenance. The 8LSC44.ee060ffgg-4 offers a nominal torque of 5.3 Nm and a stall torque of 8.5 Nm, providing strong starting and continuous torque capabilities. Its nominal power is 3349 W, with a nominal current of 6.6 A and a stall current of 10.4 A. For short-duration peak loads, the motor can deliver a maximum torque of 22.8 Nm and a maximum current of 43.8 A, ensuring it can handle transient overloads without issue.
The motor's electrical characteristics are equally important. It has a torque constant (KT) of 0.81 Nm/A and a voltage constant (KE) of 49.22 V/1000 rpm, which define its torque and voltage output per unit of current and speed. The stator resistance is 0.96 Ohm, and the stator inductance is 7.5 mH, with an electrical time constant of 7.8 ms. These parameters influence the motor's responsiveness and control stability, making it suitable for precise motion control applications.
Built for Harsh Industrial Environments
Reliability in challenging conditions is a key concern for maintenance engineers. The 8LSC44.ee060ffgg-4 is rated IP64 per EN 60034-5, offering protection against dust and water splashes, with the fan rated IP20. The motor operates in ambient temperatures from -15°C to +40°C (max +55°C), with derating of 10% per 10 K above 40°C and 5% per 1000 m above sea level, up to a maximum elevation of 2000 m. This ensures stable performance in most industrial settings.

The motor's insulation class is IEC 60085 F, with a maximum winding temperature of 155°C, and it includes thermal protection via KTY83-110 / AM-PTC1000 sensors. The vibration severity is A1 per EN 60034-14, and the bearing life is calculated per DIN ISO 281, ensuring long-term mechanical reliability. The coating is water-based RAL 9005, providing corrosion resistance in typical factory environments.
Applications in Modern Manufacturing
The 8LSC44.ee060ffgg-4 is well-suited for a variety of industrial applications that demand high speed and precision. In packaging machinery, for example, its high nominal speed of 6000 rpm enables rapid indexing and filling operations, while its compact size allows for space-saving machine designs. The motor's excellent dynamic characteristics make it ideal for pick-and-place systems, where quick acceleration and deceleration are essential for throughput.
In the automotive industry, this servo motor can be used in assembly lines for tasks such as screw driving or component positioning. Its large overload capacity (maximum torque of 22.8 Nm) ensures it can handle sudden load changes without stalling. Additionally, the optional encoders for functional safety (available in the -4 generation) allow integration into safety-related applications, enhancing overall machine safety.
Integration and Compatibility
For seamless integration, the 8LSC44.ee060ffgg-4 is designed to work with B&R's ACOPOS servo drives, specifically the recommended 013X series. This pairing ensures optimal performance and simplifies commissioning. The motor supports feedback via resolver (R0/R2) or EnDat (inductive/optical, including safety-related variants), with 32-line single-/multi-turn encoders. Built-in plug-in connectors and the single-cable (hybrid) option reduce wiring complexity, making installation and maintenance more straightforward.

From a maintenance standpoint, the motor's design includes a machine-mounted independent fan component for cooling, which is easy to access and replace. The fan is available in 24 VDC or 230 VAC versions, with noise levels specified per size (e.g., 57 dB(A) for size 4 with 24 VDC fan). This modular approach allows for quick servicing without disassembling the entire motor.
Frequently Asked Questions
What is the maximum speed of the 8LSC44.ee060ffgg-4?
The maximum speed is 6600 rpm, while the nominal speed is 6000 rpm. This high-speed capability makes it suitable for applications requiring rapid motion, such as high-speed packaging or sorting systems.
Does the motor support functional safety encoders?
Yes, the -4 generation offers encoders for functional safety, including EnDat variants with safety-related options. This allows the motor to be used in safety-critical applications when paired with an appropriate ACOPOS drive that implements STO (Safe Torque Off).
What is the recommended servo drive for this motor?
The recommended ACOPOS servo drive series is 013X. This drive is designed to match the motor's electrical characteristics, ensuring optimal performance and reliable operation.
What is the protection rating of the motor?
The motor is rated IP64 per EN 60034-5, with the fan rated IP20. With an optional oil seal, the motor can achieve IP65, providing enhanced protection in dusty or wet environments.
Why Choose AutoDCSTech for Your Automation Needs
AutoDCSTech is a trusted supplier of industrial automation spare parts, including the B&R 8LSC44.ee060ffgg-4. We understand the importance of reliability and uptime in your operations. Our team ensures that every product is sourced from reputable manufacturers and undergoes quality checks to meet your expectations.
With a focus on customer satisfaction, we offer competitive pricing and timely delivery to minimize your downtime. Whether you are replacing a failed motor or upgrading your system, AutoDCSTech is your reliable partner for genuine automation components. Contact us today to check availability and get a quote.
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