8LSA46.EB045D000-3 by B & R Automation

The 8LSA46.EB045D000-3 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. It is intended for servo-driven axes that require controlled speed and position in packaging, assembly, and material-handling equipment. It uses the 8LSA standard configuration, has no reinforced bearing, and is supplied without an oil seal or holding brake. The motor has length code 6 and uses flange mounting, making it suitable for direct attachment to machine frames in general-purpose automation axes.

The rated speed is 4500 rpm, allowing the drive system to support fast indexing and short cycle times. A flange dimension of 100 mm sets the pilot fit for mounting and helps center the motor on the machine interface. Cooling is provided by self-cooling, so no external fan is required for normal operation. Position feedback is generated by an Inductive EnDat sensor, and EnDat version 2.1 supports bidirectional communication between the motor and the connected drive. This feedback method helps maintain stable position data in applications where vibration can be present.

The encoder provides 19/12 single-turn and multi-turn bits of resolution for absolute feedback. It also supports multi-turn (4096 revs), allowing the axis to retain position information after power cycles without a battery. Cable routing is simplified because the connection direction is angled (swivel), which lets the plug rotate to suit tight enclosure layouts. This arrangement can reduce cable strain when the motor is mounted close to guards or other machine components. The motor uses a smooth shaft that mates with clamp or collet couplings and avoids keyway-related stress concentrations. Connection hardware is supplied as a standard circular connector, which keeps the electrical interface compact at the motor housing.