8LSA55.EB030D100-3 B & R Automation
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The B & R Automation 8LSA55.EB030D100-3 is a three-phase synchronous motor from the 8LS Synchronous Motors series. It features a flange dimension of 142 mm and a rated speed of 3000 rpm. This motor is self-cooled with free circulation and uses an inductive EnDat encoder with multi-turn capability up to 4096 revolutions.
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Product Description:
The 8LSA55.EB030D100-3 is a three-phase synchronous motor manufactured by B & R Automation for the 8LS Synchronous Motors series. It is supplied in the standard-bearing 8LSA configuration. An integral flange allows direct attachment to machinery and supports pairing with compatible servo drives for position and speed control in automated production cells, packaging machines, and material-handling axes.
This model reaches a rated shaft speed of 3000 rpm, providing a usable velocity range for moderate-to-high-throughput applications while keeping mechanical transmission sizes compact. The square mounting flange measures 142 mm across, supporting accurate alignment of the stator housing with gearboxes or direct-drive load couplings. Position feedback is provided by an inductive EnDat encoder that resists contamination from oil mist and fine dust. Communication with the drive uses EnDat version 2.1, enabling high-speed serial transfer of single-turn, multi-turn, and diagnostic data. Thermal management uses self-cooling through free air circulation, allowing heat to dissipate through the housing surface without auxiliary blowers or liquid cooling loops. This cooling method reduces the number of external components required around the motor and permits unobstructed airflow along the housing.
The power and feedback conductors use an angled swivel connector orientation, which reduces cable bending stress in tight enclosures and allows the harness to be rotated to suit the machine geometry. Quick-disconnect installation is provided by a keyed industrial connector that maintains IP sealing when properly mated. The encoder provides a resolution of 19/12 bits for single-turn and multi-turn positions, allowing fine interpolation of incremental movements. Internal counting provides a multi-turn range of 4096 revolutions, so absolute position can be retained across many shaft revolutions without external batteries or repeated homing cycles. This position-tracking capability supports controlled startup sequences in indexing tables and rotary actuators while helping the drive maintain awareness of the shaft position after normal power interruptions.
