8LSN55.E3030D000-0 by B & R Automation

The 8LSN55.E3030D000-0 is a synchronous servo motor produced by B & R Automation in the 8LS Synchronous Motors series. Identified by the designation 8LSN, this unit provides precise speed and position control for automated machinery where repeatable axis motion is required. Its electromagnetic design converts drive-amplifier output into regulated rotation that can be coordinated with PLC commands, making it suitable for packaging lines, pick-and-place axes, and other motion duties in industrial cells.

Electrically, the motor uses a three-phase synchronous winding topology that controls torque ripple across its operating range. Under nominal excitation it reaches 3000 rpm, a speed limit that matches servo drives without requiring gearbox reduction. Mechanical mounting follows a DIN square interface, and the front flange spans 142 mm while the length code 5 body depth supplies rotor inertia for load matching. Power and feedback connectors exit through an angled swivel adapter, allowing cable loops to remain inside the machine envelope and reducing interference with surrounding hardware. Thermal management relies on self-cooling, with the motor housing dissipating heat during cyclic duty. The housing is supplied without an oil seal, so contamination control must be handled by the host machine.

The mechanical interface is completed by a mounting flange that aligns the stator face to the frame and accepts standard fasteners. The motor has no holding brake, so braking must be provided by the drive or an external clamp when the axis must remain fixed at standstill. Output torque is delivered through a smooth shaft, which avoids keyway stress and supports backlash-free clamp couplings. The motor ships in a standard configuration without special seals, feedback variants, or cooling accessories preinstalled. This arrangement keeps the base motor straightforward for machines that already provide the required external hardware.