B&R 0ACST052.1
5-port 100/1000 Mbit Ethernet layer 2 industrial switch, 4-port TSN, 1-port Ethernet uplink (RJ45, layer 2), 24 VDC, terminal block 0TB2103.9110 included
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
| Diagnostics / Module status | Yes, using LED status indicator and software |
| Diagnostics / Network status | Yes, using LED status indicator and software |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / UL | cULus E115267 Industrial control equipment |
| B&R ID code | 0x1404 |
| Status indicators | Module status, network status |
| Power consumption | 6.3 W |
Interfaces
| Transfer / Physical layer | 100BASE-TX/1000BASE-T |
| Transfer / Half-duplex | No |
| Transfer / Full-duplex | Yes |
| Transfer / Autonegotiation | Yes |
| Transfer / Auto-MDI/MDIX | Yes |
| Type | 4x OPC UA over TSN 1x Ethernet |
| Standard (compliance) | IEEE 802 (standard Ethernet), IEEE 802.1Q (TSN), OPC UA |
| Variant | 5x RJ45 shielded |
| Line length | Max. 100 m between 2 stations (segment length) |
| Transfer rate | 100 Mbit/s and 1 Gbit/s |
Power supply
| Nominal voltage | 24 VDC, SELV/PELV |
| Voltage range | 20.4 to 28.8 VDC |
| Fuse | 3 A slow-blow |
| Reverse polarity protection | Yes |
Electrical properties
| Electrical isolation | Ethernet isolated from each other and from power supply |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Installation elevation above sea level / Maximum | 4000 m |
| Pollution degree per EN 60664-1 | 2 |
| Overvoltage category per EN 60664-1 | 2 |
| Degree of protection per EN 60529 | IP20 |
| Operating position | Indoor use only |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | See section "Mounting orientations and derating". |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | 5 to 95%, non-condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / Transport | 5 to 95%, non-condensing |
Mechanical properties
| Dimensions / Width | 25 mm |
| Dimensions / Length | 100 mm |
| Dimensions / Height | 100 mm |
| Weight | 280 g |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
Certificates
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.