Short description
Bus module Power supply bus module, for X20 SafeIO power supply modules, with node number switch, internal I/O power supply interrupted to the left
General information
Power consumption
Bus 0.13 W
Internal I/O -
Additional power dissipation caused by actuators (resistive) [W] -
CE Yes
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 09 ATEX 0083X
UL cULus E115267
Industrial control equipment
HazLoc cCSAus 244665
Process control equipment
for hazardous locations
Class I, Division 2, Groups ABCD, T5
DNV In preparation
I/O power supply
Nominal voltage 24 VDC
Permissible contact load 10 A
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level 0 to 2000 m, no limitation
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
Pitch 25+0.2 mm
Material number:
  • Bus module for SafeIO power supply modules
  • The internal I/O power supply is interrupted to the left.
  • For creating potential groups
  • Manual node number assignment
  • Independent from the electronics module
  • Manual and automatic addressing can be combined as desired.

The bus module is the base for all SafeIO power supply modules. The internal I/O power supply is interrupted to the left. In addition, a unique address is defined with this bus module using a node number switch.

Automation Studio HW Upgrades Version (Date) Download
V4.0 HW Upgrade (X20BM26) EXE / 829 KB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 149 KB
E115267 UL CoC X20 PDF / 654 KB
FTZU 09 ATEX 0083X PDF / 771 KB
Safe cutoff of potential groups PDF / 0 B
X20, X67 KC certificates PDF / 6 MB
Documentation Version (Date) Download
Data sheet X20(c)BMxx - Legacy PDF / 1 MB
Data sheet X20(c)BMxx - mapp Safety PDF / 1 MB
Installation- / EMC-Guide PDF / 20 MB
X20 System User´s Manual PDF / 7 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
X20 EPLAN P8 from V2.4 EXE / 158 MB
M-CAD (Mechan. Templates) Version (Date) Download
3D file STEP X20BMxx ZIP / 32 KB
DFX File Bus module ZIP / 5 KB
Dimensions PDF X20 Bus module PDF / 46 KB

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