B&R 8LSA35.DA030S300-3 3000 RPM 2.1 Nm Key Shaft Servo Motor with Holding Brake

The B&R 8LSA35.DA030S300-3 is a 400 VAC synchronous servo motor designed for machinery that requires reliable positioning performance together with secure axis holding when power is removed. It combines a 3000 rpm nominal speed with 2.10 Nm nominal torque, providing a balanced solution for compact automation axes, transmission-driven mechanisms and cyclic production equipment.

Unlike brake-free motor versions used mainly for horizontal movement, this configuration includes an integrated 4.00 Nm holding brake. The brake is beneficial for properly designed vertical axes, suspended loads and mechanisms that must remain in position during shutdown, servicing or emergency power loss. It is intended for stationary holding rather than frequent dynamic stopping.

The motor is equipped with an ECI 1319 FS single-turn feedback system using EnDat 2.2 communication. This encoder configuration supports precise speed control and position feedback in matched B&R motion systems. The 14 mm keyed shaft provides a positive mechanical drive connection for compatible pulleys, gears, couplings and other transmission components, helping reduce slip under changing load conditions.

With its self-cooling construction, compact 91.30 mm square flange and angled machine-axis installation suitability, the 8LSA35.DA030S300-3 is a practical replacement choice for automation maintenance, refurbishment and retrofit projects. Before installation, confirm the original feedback interface, brake requirement, shaft arrangement, mounting dimensions and servo drive parameter settings.

Key Features

3000 rpm nominal speed for controlled industrial motion

2.10 Nm nominal torque for compact servo axis applications

4.00 Nm integrated holding brake for stationary axis retention

Keyed 14 mm k6 shaft for secure mechanical power transmission

ECI 1319 FS single-turn encoder feedback

EnDat 2.2 communication interface

400 VAC self-cooling synchronous motor design

91.30 mm square flange for compact machine integration

80 mm j6 centering diameter for accurate mounting alignment

Suitable for compatible B&R motion control systems

Typical Applications

Vertical positioning axes

Packaging and cartoning equipment

Automatic assembly machinery

Conveyor positioning systems

Belt-driven motion modules

Rotary indexing mechanisms

Labeling and printing equipment

Pick-and-place handling units

Machine rebuilding and servo motor replacement projects

FAQ

Q: Does the B&R 8LSA35.DA030S300-3 include a holding brake?
A: Yes. This model has an integrated holding brake with 4.00 Nm holding torque.

Q: Is the brake intended for continuous dynamic braking?
A: No. The integrated brake is primarily designed to hold the axis in position when power is removed. Dynamic braking requirements should be handled by the correctly configured servo drive and machine design.

Q: What is the shaft configuration of this motor?
A: It uses a 14 mm k6 x 30 mm keyed shaft without an oil seal.

Q: What encoder system does this motor use?
A: This model uses an ECI 1319 FS single-turn encoder with EnDat 2.2 communication.

Q: What are the rated speed and torque values?
A: The nominal speed is 3000 rpm and the nominal torque is 2.10 Nm.

Q: Can it replace another 8LSA35 motor?
A: It can be used as a replacement only after verifying the original motor voltage, torque, shaft type, brake specification, feedback interface, mechanical dimensions and drive configuration.