8LSA44.DA030S000-3

Product Description:

The 8LSA44.DA030S000-3 is a three-phase synchronous motor produced by B & R Automation and belongs to the 8LS Synchronous Motors series. It serves as a servo axis drive element, converting electrical energy into controlled rotary motion for positioning or continuous-duty tasks in automated machinery. The unit follows the 8LSA configuration, meaning it employs standard bearings without reinforcement.

The motor develops a rated speed of 3000 rpm, which pairs with a nominal output of 1451 W to support axes such as packaging spindles. At this operating point it delivers 4.62 Nm of continuous torque while drawing a nominal current of 2.8 A from the drive. When rapid acceleration is needed, the winding can accept up to 21.9 A, allowing a peak torque of 22.8 Nm before saturation. A stall torque of 6 Nm defines the torque available at locked rotor, important for maintaining position under load. Self-cooling through free air circulation removes heat without external blowers, and the 100 mm flange allows direct attachment to machine frames.

Dynamic behaviour is characterised by a torque constant of 1.63 Nm/A, so each ampere from the inverter produces a predictable increment of shaft torque. The stator’s electromagnetic network shows an inductance of 24 mH and a resistance of 3.6 Ω; together they give an electrical time constant of 6.7 ms, setting the upper limit for current loop bandwidth. Mechanical responsiveness stems from a rotor inertia of 2.73 kgcm², enabling fast speed changes without overshoot. Position feedback is provided by an inductive EnDat 2.2 encoder with 19 single-turn bits, conveyed along with power on the hybrid single-cable connection. Thermal equilibrium is reached after 30 min according to the thermal time constant, and the 5.4 kg housing remains sealed by a smooth shaft without an oil seal or holding brake, product revision 3, length code 4.