B&R X20BB63
Base for X20 Compact-S controllers 1 slot for X20 interface modules RS485 connection Integrated terminating resistor The bus base is a base for all X20 Compact-S controllers with the designation X20CP048x. It is equipped with 1 slot for X20 interface modules. The left and right end cover plates are included in delivery.
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.
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
Short description
| Bus module | X20 Compact-S PLC base - backplane for Compact-S PLC and Compact-S PLC power supply module and X20 interface module |
| Interfaces | 1x RS485 connection |
General information
| Power consumption / Bus | 0.94 W |
| Power consumption / Internal I/O | - |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| B&R ID code | 0x2A59 |
| Additional power dissipation caused by actuators (resistive) [W] | - |
I/O power supply
| Nominal voltage | 24 VDC |
| Permissible contact load | 10 A |
Electrical properties
| Electrical isolation | Bus not isolated from RS485 |
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 |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / 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
| Note | Left and right X20 end cover plates included in delivery |
| Pitch | 62.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
3D CAD models
ECAD / EPLAN
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.