Short description
I/O module 4 safe type A digital outputs, with current monitoring, 24 VDC, 2 A, OSSD <500 µs
General information
B&R ID code 0x2007
System requirements
Automation Studio 3.0.71 or later
Automation Runtime 2.95 or later
SafeDESIGNER 2.58 or later
Safety Release 1.1 or later
mapp Technology Package mapp Safety 5.7.0 or later
Status indicators I/O function per channel, operating state, module status
Module run/error Yes, using LED status indicator and software
Outputs Yes, using LED status indicator and software
Blackout mode
Scope Module
Function Module functionality
Standalone mode No
Max. I/O cycle time 800 µs
Power consumption
Bus 0.25 W
Internal I/O 1.3 W
Additional power dissipation caused by actuators (resistive) [W] 2.16
Electrical isolation
Channel - Bus Yes
Channel - Channel No
CE Yes
Functional safety cULus FSPC E361559
Energy and industrial systems
Certified for functional safety
ANSI UL 1998:2013
Functional safety IEC 61508:2010, SIL 3
EN 62061:2005/A2:2015, SIL 3
EN ISO 13849-1:2015, Cat. 4 / PL e
IEC 61511:2004, SIL 3
Functional safety EN 50156-1:2004
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 Temperature: A (0 - 45°C)
Humidity: B (up to 100%)
Vibration: A (0.7 g)
EMC: B (bridge and open deck)
KR Yes
KC Yes
Safety characteristics
EN ISO 13849-1:2015
Category Cat. 3 if parameter "Disable OSSD = Yes - Warning",
Cat. 4 if parameter "Disable OSSD = No"
PL PL d if parameter "Disable OSSD = Yes - Warning",
PL e if parameter "Disable OSSD = No"
DC >60% if parameter "Disable OSSD = Yes - Warning",
>94% if parameter "Disable OSSD = No"
MTTFD 2500 years
Mission time Max. 20 years
IEC 61508:2010,
IEC 61511:2004,
EN 62061:2013
SIL CL SIL 2 if parameter "Disable OSSD = Yes - Warning",
SIL 3 if parameter "Disable OSSD = No"
SFF >60% if parameter "Disable OSSD = Yes - Warning",
>90% if parameter "Disable OSSD = No"
Per channel <1*10-10
openSAFETY wired Negligible
openSAFETY wireless <1*10-14 * Number of openSAFETY packets per hour
PFD <2*10-5
Proof test interval (PT) 20 years
I/O power supply
Nominal voltage 24 VDC
Voltage range 24 VDC -15% / +20%
Integrated protection Reverse polarity protection
Safe digital outputs
Quantity 4
Variant FET, 1x positive switching, 1x negative switching, type A, output level readable, open-circuit detection
Nominal voltage 24 VDC
Nominal output current 2 A
Total nominal current 5 A
Output protection See section "Inrush current behavior for output channels".
Braking voltage when switching off inductive loads Max. 90 VDC
Open-circuit detection Via internal current measurement,
output current <10 mA: Signal "CurrentOK" = FALSE,
output current 10 to 50 mA: Signal "CurrentOK" = Undefined,
output current >50 mA: Signal "CurrentOK" = TRUE
Error detection time 1 s
Insulation voltage between channel and bus 500 Veff
Peak short-circuit current See section "Inrush current behavior for output channels".
Leakage current when the output is switched off <10 µA
RDS(on) 240 mΩ
Switching voltage I/O power supply minus voltage drop due to RDS(on)
Max. switching frequency See section "Inrush current behavior for output channels".
Test pulse length Max. 500 µs
Time between two test pulses Min. 49.5 ms
Max. capacitive load 100 nF
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 0 to 60°C
Vertical mounting orientation 0 to 50°C
Derating See section "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 Order 1x safety-keyed terminal block separately.
Order 1x safety-keyed bus module separately.
Pitch 25+0.2 mm
Material number:
  • 4 safe digital outputs with 2 A
  • Source circuit
  • Output type A
  • Current monitoring
  • Open circuit detection
  • Integrated output protection

This module is equipped with 4 safe digital outputs. The nominal output current is 2 A.

The module can be used for controlling actuators in safety-related applications up to PL e or SIL 3.

The outputs are designed using semiconductor technology so that the safety-related characteristics do not depend on the number of operating cycles. The "high-side low-side" variant (output type A) is limited to actuators without reference potential (e.g. relays, valves). Type A outputs have safety-related advantages since the actuator can be cut off in its connection cable in all error scenarios. Safe digital output channels provide protection against automatic restart when network errors occur and also using a current measurement for open circuit detection.

This module is designed for X20 12-pin terminal blocks.

Mandatory Accessories
Bus modules
X20BM33 X20 bus module, for X20 SafeIO modules, internal I/O power supply connected through
X20BM36 X20 bus module, for X20 SafeIO modules, with node number switch, internal I/O power supply connected through
Terminal blocks
X20TB52 X20 terminal block, 12-pin, safety-keyed
Automation Studio HW Upgrades Version (Date) Download
V3.0 HW Upgrade (X20SO4120) EXE / 1 MB
V4.0 HW Upgrade (X20SO4120) EXE / 2 MB
V4.6 HW Upgrade (X20SO4120) EXE / 2 MB
Certificates Version (Date) Download
244665 CSA HazLoc Certificate of Compliance X20, X67 PDF / 149 KB
ABS Certificate of Product Design Assessment - X20 IO Series PDF / 2 MB
DNV Type Approval Certificate - X20 PDF / 193 KB
E115267 UL CoC X20 PDF / 654 KB
FS Certificate SafeDESIGNER, SafeLOGIC, SafeIO PDF / 851 KB
FS Certificate mapp Safety PDF / 3 MB
FS EN 50156 Zertifikat SafeLOGIC, SafeIO PDF / 314 KB
FTZU 09 ATEX 0083X PDF / 771 KB
KR Type Approval Certificate MIL39390-AC003 (X20 System) PDF / 758 KB
Lloyds Register PDF / 502 KB
RINA Type Approval Certificate - X20 / Power Panel T30 PDF / 1 MB
X20, X67 KC certificates PDF / 6 MB
Documentation Version (Date) Download
Data sheet X20(c)SOx1x0 - Legacy PDF / 3 MB
Data sheet X20(c)SOx1x0 - mapp Safety PDF / 2 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 X20(c)Sxxxxx - Terminal block right side ZIP / 21 KB
DFX File I/O Slice ZIP / 4 KB
Dimensions PDF X20 I/O Slice PDF / 45 KB
Tools / Utilities / Examples Version (Date) Download
Sistema library ZIP / 336 KB

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