8LSA55.EB030D100-3 by B & R Automation

The 8LSA55.EB030D100-3 is a three-phase synchronous motor manufactured by B&R Automation and assigned to the 8LS Synchronous Motors series. The 8LSA designation indicates a standard build, so the motor is suited to general-purpose axis service in packaging lines, handling modules, and other CNC-based equipment. When paired with a compatible inverter, it provides controlled torque and speed so machine axes can follow commanded position profiles during demanding duty cycles. Its synchronous design also helps maintain accurate coordination between the commanded motion profile and actual shaft movement during positioning and feed tasks.

Its mechanical interface uses a mounting flange with a diameter of 142 mm, and the shaft end includes a key for slip-free coupling. The electrical leads exit through an angled swivel connector, which helps route cables in tight spaces. Internally wound for constant torque, the motor reaches a rated speed of 3000 rpm. Heat is removed by self-cooling by free air circulation, so continuous operation does not require external air or liquid cooling. Position feedback comes from an inductive EnDat encoder that complies with release 2.1. The motor uses standard bearings and does not include an oil seal, which keeps the configuration straightforward for clean, enclosed installations.

The encoder provides a native resolution of 19/12 bits for single-turn and multi-turn measurements, and its counter can record up to 4096 revolutions without battery support. This battery-free multi-turn capability allows stored position data to remain available without a separate backup battery system. The frame uses length code 5, which corresponds to this housing length and winding arrangement. Product revision 3 indicates the revision level of the motor. A holding brake is not included, so static torque must be supplied by the drive or by an external brake when power is removed. Mounting is limited to the flange, and the electrical connection uses a quick-release connector.