Product Description
Model 8LSA44.EA030D000‑3 is a 3‑phase permanent magnet synchronous servo motor from B&R 8LS‑3 series. Self‑cooling construction type A, without holding brake. Smooth plain shaft, swivel‑angle angled connector. Built‑in inductive EnDat2.1 single‑turn encoder. No shaft oil seal, protection class IP64, centering diameter 95 mm. Features high torque density and excellent dynamic performance. Designed for closed‑loop position, velocity and torque control with B&R ACOPOS servo drives. Available as new spare part or for legacy‑machine retrofitting.
Key Specifications
| Item | Specification |
|---|---|
| Part Number | 8LSA44.EA030D000‑3 |
| Series | B&R 8LS‑3 3‑Phase Permanent‑Magnet Synchronous Servo Motor |
| Pole Pairs | 5 |
| Nominal Speed | 3000 rpm |
| Maximum Permissible Speed | 12000 rpm |
| Nominal Torque | 4.62 Nm |
| Stall Torque | M0 = 6.0 Nm |
| Peak Maximum Torque | 22.8 Nm |
| Nominal Output Power | 1451 W |
| Nominal Current | 2.8 A |
| Stall Current | 3.7 A |
| Maximum Peak Current | 21.9 A |
| Torque Constant Kt | 1.63 Nm/A |
| Back‑EMF Constant Ke | 98.44 V/1000rpm |
| Rotor Moment of Inertia | 2.73 kg·cm² |
| Two‑phase Stator Resistance | 3.6 Ω |
| Electrical Time Constant | 6.7 ms |
| Feedback Encoder | EnDat2.1 inductive single‑turn encoder |
| Brake | No holding brake |
| Shaft Type | Smooth plain shaft (without keyway) |
| Connector | Swivel‑angled connector |
| Cooling | Self‑cooling (natural convection) |
| Centering Diameter | 95 mm |
| Protection Rating | IP64 |
| Max. DC Bus Voltage | 560 VDC |
| Certifications | CE, UL/cUL |
Applications
- Packaging machinery, printing equipment, plastic injection & forming machines
- CNC machine tools, special‑purpose processing machines, automated production lines
- Robot axes, material handling mechanisms, gantry positioning systems
- Test‑bench equipment, textile machinery
- Spare‑part replacement for original B&R installations, automation system retrofits.
Important Notes
- This model is without brake. Brake‑equipped variant: 8LSA44.EA030D200‑3.
- Encoder uses EnDat2.1 protocol; must pair with ACOPOS drives supporting EnDat interface.
- For replacement, verify centering diameter, shaft style, encoder type and brake option to avoid mechanical or communication incompatibility.
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