Product Description:

The 8LSA46.EB045D100-3 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. As a standard 8LSA build, it uses standard bearings rather than reinforced bearing sets, and the housing is intended for flange mounting so the stator can be fastened directly to a rigid machine frame. In an automation cell, the motor serves as a torque source for servo axes by converting regulated AC drive current into precise mechanical rotation for pick-and-place, indexing, or spindle duties.

The power and feedback leads exit the housing through an angled swivel connector arrangement, which keeps cables close to the machine structure and reduces bending stress during articulation. A sealed connector is provided so wiring can be detached for service or transport. Thermal management uses self-cooling with free circulation, so the frame dissipates heat without external blowers or liquid circuits. Rotor position is measured by an inductive EnDat encoder, and its digital protocol uses EnDat version 2.1 for bidirectional transmission of position and diagnostic data. Under nominal excitation, the motor reaches a rated speed of 4500 rpm, allowing high-throughput motion while the drive maintains vector control across the operating range.

The square mounting interface has a flange dimension of 100 mm, giving a clear reference for gearbox or bracket alignment. Inside the encoder, position resolution is 19/12 bits for single-turn and multi-turn data, and the turn counter spans 4096 revolutions for absolute position tracking after power loss. Product revision 3 uses length code 6 for this stator stack depth. The motor has a keyed shaft end for pulleys or couplings, and it comes without a holding brake or an oil seal, so external locking and sealing must be provided when required. It also uses a standard bearing system for general-purpose duty without the added mass of heavy-load bearing cartridges.