B&R 8MSA54.I9030J000-4
Synchronous motor 8MS, self-cooling, construction type A, 400 VAC - Number of pole pairs: 5 - Nominal speed: 3000 rpm - Nominal torque: 14.400 Nm - Stall torque: 20.150 Nm - Centering diameter: 130.00 mm, h7 fit - Flange square dimension: 150.00 mm - Brake holding torque: 0.00 Nm - Smooth shaft d=24.00 k6x50.00 mm, without oil seal - EQI 1131 FS E30-R2, M: 4096 - 00: No special option
Lifecycle & replacement
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
Servo amplifiers, motors, encoders and cables are matched sets. If this part is no longer available in its original form, the manufacturer's newer generation usually will not pair with the rest of the axis, so an upgrade normally covers the drive, motor and cables together. Send us the nameplate details and we will confirm availability of an exact spare or scope a compatible upgrade.
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 / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / UL | cURus E360421 Servo and stepper motors - Component |
Motor
| Nominal speed nN [rpm] | 3000 |
| Number of pole pairs | 5 |
| Nominal torque Mn [Nm] | 14.4 |
| Nominal power PN [W] | 4524 |
| Nominal current IN [A] | 9 |
| Stall torque M0 [Nm] | 20.15 |
| Stall current I0 [A] | 12.6 |
| Maximum torque Mmax [Nm] | 43 |
| Maximum current Imax [A] | 32.87 |
| Maximum speed nmax [rpm] | 4000 |
| Torque constant KT [Nm/A] | 1.6 |
| Voltage constant KE [V/1000 rpm] | 0.92 |
| Stator resistance R2ph [Ω] | 0.68 |
| Stator inductance L2ph [mH] | 10.4 |
| Electrical time constant tel [ms] | 15.29 |
| Thermal time constant ttherm [min] | 38 |
| Moment of inertia J [kgcm²] | 12.3 |
Holding brake
| Holding torque of brake MBr [Nm] | 0 |
| Mass of brake [kg] | 0 |
Recommendations
| ACOPOS P3 8EIxxxx... | 017X |
| Connector size | 1 |
Options
| Shaft end | Smooth shaft |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Manuals
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.