IAC

B&R 8LSA37.R2030D300-3

Synchronous motor 8LS, self-cooling, construction type A, 400 VAC - Number of pole pairs: 4 - Nominal speed: 3000 rpm - Nominal torque: 3.400 Nm - Stall torque: 3.600 Nm - Centering diameter: 80.00 mm, j6 fit - Flange square dimension: 91.30 mm - Brake holding torque: 4.00 Nm - Shaft key d=14.00 k6x30.00 mm, without oil seal - LTN RE-15-1-V05, S: 1 - 00: No special option - Efficiency: 92.1

Lifecycle & replacement

Lifecycle status not indexed

No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.

IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.

Technical specifications

General information
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)Not applicable
Certifications / ULcURus E360421 Servo and stepper motors - Component
Motor
Nominal speed nN [rpm]3000
Number of pole pairs4
Nominal torque Mn [Nm]3.4
Nominal power PN [W]1068
Nominal current IN [A]2.3
Stall torque M0 [Nm]3.6
Stall current I0 [A]2.5
Maximum torque Mmax [Nm]14.4
Maximum current Imax [A]10.6
Maximum speed nmax [rpm]9000
Torque constant KT [Nm/A]1.45
Voltage constant KE [V/1000 rpm]87.96
Stator resistance R2ph [Ω]6.98
Stator inductance L2ph [mH]37.5
Electrical time constant tel [ms]5.4
Thermal time constant ttherm [min]38
Moment of inertia J [kgcm²]1.38
Weight without brake m [kg]5.6
Holding brake
Holding torque of brake MBr [Nm]4
Mass of brake [kg]0.59
Moment of inertia of brake JBr [kgcm²]0.38
Recommendations
ACOPOS 8Vxxxx.xx...1045
ACOPOSmulti 8BVIxxxx...0028
ACOPOS P3 8EIxxxx...4X5X
Cross section for B&R motor cables [mm²]0.75
Connector size1
Options
Connection typeConnector (speedtec system)
Connection directionAngled (swivel)
Encoder2-pole R2 resolver
Shaft endKey

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

Get a quote for a replacement

Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.

Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.