8LSA55.E3030D000-1 by B & R Automation

The 8LSA55.E3030D000-1 is a servo-class AC motor built by B&R Automation for the 8LS Synchronous Motors series. As a three-phase device, it drives machine axes that require coordinated torque and speed control in industrial automation cells. Within the series, it carries the internal designation 8LSA and follows a standard configuration without a reinforced bearing, so it suits general-purpose duty rather than positions with high radial loads. This layout makes the motor suitable for applications that prioritize accurate motion over specialized bearing support. The motor is produced with housing length code 5, giving additional stack height for torque without changing the external flange pattern.

The motor's electrical topology is three-phase synchronous, meaning the rotor field remains locked to the rotating stator field for precise motion. Its rated speed of 3000 rpm allows continuous shaft operation up to that velocity without exceeding thermal limits. A flange diameter of 142 mm sets the bolt circle and supports interchangeability with other IEC-sized actuators on the machine frame. Heat is released by self-cooling with free circulation, so airflow around the housing is sufficient and no external blower is required. Cabling leaves the stator through an angled swivel outlet, allowing the connector body to be positioned after installation to relieve strain.

The mechanical interface uses a mounting flange, so the stator body can be fastened directly to a machine wall without supplementary foot plates. The output end is a smooth shaft, permitting backlash-free coupling with clamping hubs or bellows couplings. Power and feedback lines mate to a sealed connector that aligns with the swivel outlet, simplifying cable routing. For axes that require fail-safe stopping, an external brake must be added because the motor is delivered with no holding brake. It is also supplied without an oil seal, so the shaft should not be exposed to splashing coolant unless an external barrier is fitted around the coupling area.