Short description
Bus module X20 Compact-S PLC base - backplane for Compact-S PLC and Compact-S PLC power supply module
Interfaces 1x RS485 connection
General information
B&R ID code 0xF4D1
Power consumption
Bus 0.55 W
Internal I/O -
Additional power dissipation caused by actuators (resistive) [W] -
CE Yes
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
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitation
>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 37.5+0.2 mm
Material number:
  • Base for all X20 Compact-S CPUs
  • RS485 connection
  • Integrated terminating resistor

The bus base is the base for all X20 Compact-S CPUs.

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

Automation Studio HW Upgrades Version (Date) Download
V4.11 HW Upgrade (X20BB53) EXE / 649 KB
Documentation Version (Date) Download
Data sheet X20BB53 PDF / 216 KB
Installation- / EMC-Guide PDF / 20 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
Makro-/Artikeldaten 4.0.3 (X20BB53) EXE / 582 KB
M-CAD (Mechan. Templates) Version (Date) Download
3D File DXF/STEP X20BB2x/5x ZIP / 920 KB

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