Product Description:

The 8LSA44.E3030D300-0 is a three-phase synchronous motor from B & R Automation in the 8LS Synchronous Motors series. Built to the 8LSA standard, it omits reinforced bearings and routes cabling through an angled swivel connector with a single plug interface. A 100 mm mounting flange and a keyed shaft end allow direct coupling to gearboxes or driven loads, while the integrated flange holes simplify installation. In packaging, machining, and handling equipment, the unit runs at 3000 rpm and converts servo commands into precise rotary motion for automated axes.

At its continuous operating point, the motor draws a nominal 2.8 A, dissipates heat through self-cooling by free air circulation, and delivers a mechanical output of 1451 W. For short intervals, it can generate up to 22.8 Nm of torque, a capability that requires as much as 21.9 A from the drive and aids rapid acceleration or load recovery. Electrical dynamics are influenced by a stator resistance of 3.6 Ω and an inductance of 24 mH; together they influence the motor's electrical time response. Length code 4 construction keeps stack size moderate, and a stall current of 3.7 A supports a 6 Nm holding torque when motion is halted.

A standard holding brake applies 8 Nm of static torque and adds 1 kg to the assembly so axes remain fixed during power loss. Rotor dynamics derive from an inertia of 2.73 kg cm²; combined with a nominal torque of 4.62 Nm, it supports predictable start-stop profiles without overshoot. The magnetic design provides a torque constant of 1.63 Nm/A and a back-EMF constant of 98.44 V/1000 rpm, allowing the inverter to anticipate voltage demand over the speed range. Because an oil seal is not present, external protection must prevent lubricant ingress, and the mounting flange works with the keyed shaft to transmit torque without slippage.