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Short description
I/O module 4 half-bridge outputs
General information
B&R ID code 0xA976
Status indicators I/O function per channel, operating state, module status
Module run/error Yes, using status LED and software
Output Yes, using status LED and software
I/O power supply Yes, using status LED and software
Power consumption
Bus 0.01 W
Internal I/O 0.8 W
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
KC Yes
Motor bridge - Power unit
Quantity 4
Type Half bridge
High-side driver
Low-side driver
Nominal voltage 24 VDC
Switching voltage 24 VDC (-15% / +20%)
Nominal current 3 A
Maximum current 5 A (250 ms)
Total nominal current 10 A
Current value measurement
Resolution 100 mA
Data collection On the high-side branch
Output protection Thermal cutoff for overcurrent and short circuit
Supply voltage No reverse polarity protection
Insulation voltage between channel and bus 500 Veff
Digital outputs
Quantity 4
Nominal voltage 24 VDC
Output protection Thermal cutoff for overcurrent and short circuit
Type Half bridge
High-side driver (Source)
Low-side driver (Sink)
Max. continuous current per output 3 A
Max. module current 10 A
Recording current value on high branch
Resolution 100 mA
Electrical properties
Electrical isolation
Bus isolated from channel and external I/O power supply

Channel not isolated from channel
Operating conditions
Mounting orientation
Horizontal 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 0 to 50°C
Vertical mounting orientation Not permitted
Derating See section "Derating"
Storage -25 to 70°C
Transport -25 to 70°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Order 1x X20TB12 terminal block separately
Order 1x X20BM11 bus module separately
Pitch 12.5+0.2 mm
Material number:
  • 4 half-bridge outputs
  • High component density
  • 3 A continuous current
  • 5 A peak current
  • Readable current

The 4 outputs on the motor module are designed as half-bridge outputs. The continuous current per channel is 3 A at a peak current of up to 5 A. Integrated diagnostics offer the possibility to read back the output current for each channel using the application.

The module offers extensive possibilities for controlling motors, valves or resistive loads and is particularly well suited for controlling brush DC motors. The outputs can be switched on/off and short-circuited.

Mandatory Accessories
Bus modules
X20BM11 X20 bus module, 24 VDC keyed, internal I/O supply continuous
X20BM15 X20 bus module, with node number switch, 24 VDC keyed, internal I/O supply continuous
Terminal blocks
X20TB12 X20 terminal block, 12-pin, 24 VDC keyed
Automation Studio HW Upgrades Version (Date) Download
V2.6 HW Upgrade (X20MM4331) EXE / 793 KB
V3.0 HW Upgrade (X20MM4331) EXE / 792 KB
V3.0 HW Upgrade (X20MM4331) EXE / 2 MB
V4.0 HW Upgrade (X20MM4331) EXE / 813 KB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 56 KB
E115267 UL CoC X20 PDF / 847 KB
FTZU 09 ATEX 0083X PDF / 697 KB
Safe cutoff of potential groups PDF / 147 KB
X20, X67 KC certificates PDF / 6 MB
Documentation Version (Date) Download
Data sheet X20MM4331 PDF / 326 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 DXF/STEP X20 Electronic module ZIP / 10 KB
3D File STEP X20 I/O-Slice ZIP / 872 KB
Dimensions PDF X20 Electronic module PDF / 3 KB

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