8LSA44.DA030S000-3
The 8LSA44.DA030S000-3 is a three-phase synchronous motor manufactured by B&R Automation within the 8LS Synchronous Motors series. It carries the internal designation 8LSA, corresponds to product revision 3, and uses length code 4. A 100 mm flange dimension and a mounting flange interface allow direct attachment to compact machine frames. Wiring is simplified by a single-cable hybrid connection with a connector. The model is intended to drive positioning axes in automated handling, packaging, and light machining equipment that require precise torque and speed regulation.
At its rated operating point, the motor delivers 4.62 Nm of continuous torque at a speed of 3000 rpm, producing 1451 W while drawing 2.8 A of phase current. The windings have a torque constant of 1.63 Nm/A, a voltage constant of 98.44 V/1000 rpm, and an electrical time constant of 6.7 ms. Servo loop behavior is influenced by 24 mH of synchronous inductance and 3.6 Ω of resistance. Position feedback is supplied by an inductive EnDat encoder with version 2.2 electronics and 19-bit single-turn resolution. Cooling relies on free air circulation through the housing, and the thermal time constant is 30 minutes. The motor has no holding brake and no oil seal, and it comes in a standard configuration without reinforced bearings. A smooth shaft end and a stall torque of 6 Nm complete the mechanical arrangement.
For transient demands, the rotor can produce 22.8 Nm of peak torque while the drive may supply up to 21.9 A before current limiting occurs. The 2.73 kg cm² moment of inertia balances acceleration response against load stability, and the overall mass is 5.4 kg, which helps keep moving axes within payload limits. Because the motor lacks an oil seal, it should be used where lubricant cannot reach the shaft interface. The smooth shaft is intended for couplings secured by clamps or hubs provided by the machine builder.
