Please choose country and language

Short description
Bus module X20 Compact-S CPU base - backplane for Compact-S CPU and Compact-S CPU power supply module and 2 X20 interface modules
Interfaces 1x RS232 connection, 1x CAN bus connection
General information
B&R ID code 0xEB05
Power consumption
Bus 1.17 W
Internal I/O -
Additional power dissipation caused by actuators (resistive) [W] -
CE Yes
UL cULus E115267
Industrial control equipment
I/O power supply
Nominal voltage 24 VDC
Permissible contact load 10 A
Electrical properties
Electrical isolation Bus, CAN bus and RS232 not isolated from each other
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitations
>2000 m Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529 IP20
Ambient conditions
Horizontal mounting orientation -25 to 60°C
Vertical mounting orientation -25 to 50°C
Derating -
Storage -40 to 85°C
Transport -40 to 85°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Left and right X20 end cover plates included in delivery
Pitch 87.5+0.2 mm
Material number:
  • Base for X20 Compact-S CPUs
  • 2 slots for X20 interface modules
  • RS232 connection
  • CAN bus connection
  • Integrated terminating resistor for CAN bus

The bus module is the base for all X20CP048x Compact-S CPUs in the X20 family. It is equipped with 2 slots for X20 interface modules.

The left and right end plates are included in the delivery.

Automation Studio HW Upgrades Version (Date) Download
V4.3 HW Upgrade (X20BB77) EXE / 959 KB
Certificates Version (Date) Download
E115267 UL CoC X20 PDF / 847 KB
Documentation Version (Date) Download
Data sheet X20BB77 PDF / 133 KB
X20 System User´s Manual PDF / 56 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
X20 EPLAN P8 from V2.4 EXE / 161 MB
M-CAD (Mechan. Templates) Version (Date) Download
3D File STEP/DXF X20(c)BBxx ZIP / 1 MB

Please choose country and language

B&R Logo