Product Description:

The 8MSA2L.R0-K5 is a three-phase synchronous motor produced by B & R Automation for the 8MS Three Phase Synchronous Motors series. As a compact rotary actuator, it converts inverter output into mechanical shaft rotation for conveyors, pick-and-place heads, and other position-controlled axes in automated lines. The unit fits within size code 2 and length code L, allowing machine builders to select a lightweight frame while still obtaining sufficient torque density for dynamic duty cycles typical of packaging, semiconductor, or small assembly modules.

During continuous operation, the motor delivers a rated mechanical output of 0.33 kW at a shaft speed of 6000 rpm, drawing a phase current of 0.86 A. When rapid acceleration is required, the electromagnetic system permits a peak torque of 2.40 Nm, and the rotor can be driven up to 12000 rpm for brief periods. Self-cooling removes heat through the housing, so no external blower or liquid circuit is necessary. The stator terminals are positioned on the A side, simplifying cable routing in cabinets where space is limited. Relative rated torque is classified as large, and the chosen length code L matches the internal winding to this thermal profile.

At zero speed, dynamic limits include a torque constant of 0.65 Nm/A, a stall current of 0.93 A, and a continuous stall torque of 0.60 Nm. The drive can momentarily supply 4.00 A of peak current without surpassing insulation limits, while an installation axial load of 200 N may be applied to the shaft without affecting bearing life. Position feedback is provided by a BRX resolver; its nonlinearity stays within ±1 angular minute and total precision within ±10 angular minutes, giving the controller fine resolution across the full speed range. Resolver technology also tolerates high temperatures and vibration.