B&R X20cSO4120
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.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 4 safe type A digital outputs, with current monitoring, 24 VDC, 2 A, OSSD <500 µs |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | Yes, using LED status indicator and software |
| Blackout mode / Scope | Module |
| Blackout mode / Function | Module functionality |
| Blackout mode / Standalone mode | No |
| Power consumption / Bus | 0.25 W |
| Power consumption / Internal I/O | 1.3 W |
| Electrical isolation / Channel - Bus | Yes |
| Electrical isolation / Channel - Channel | No |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / Functional safety | cULus FSPC E361559 Energy and industrial systems Certified for functional safety ANSI UL 1998:2013 |
| Certifications / Functional safety #2 | 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 |
| Certifications / Functional safety #3 | EN 50156-1:2004 |
| Certifications / ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| Certifications / UL | cULus E115267 Industrial control equipment |
| Certifications / HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| Certifications / DNV | Temperature: A (0 to 45°C) Humidity: B (up to 100%) Vibration: A (0.7 g) EMC: B (bridge and open deck) |
| Certifications / LR | ENV1 |
| Certifications / KR | Yes |
| Certifications / ABS | Yes |
| Certifications / BV | EC21B Temperature: 5 - 45°C Vibration: 0.7 g EMC: Bridge and open deck |
| B&R ID code | 0xDD5C |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | 2.16 |
Safety characteristics
| Note | See section "Safety characteristics". |
I/O power supply
| Nominal voltage | 24 VDC |
| Voltage range | 24 VDC -15% / +20% |
| Integrated protective function | 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 |
| Mounting orientation / Vertical | Yes |
| Installation elevation above sea level | 0 to 2000 m, no limitation |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | See section "Derating". |
| Temperature / Starting temperature | Yes, -40°C |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | Up to 100%, condensing |
| Relative humidity / Storage | 5 to 95%, non-condensing |
| Relative humidity / 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 |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
ECAD / EPLAN
Certificates
- 2226379 CSA Certificate of Compliance X20 X67
- 64331_A1 BV Certificate of Compliance X20
- 64331_A1 BV Certificate of Compliance X20(de)
- ABS Certificate of Product Design Assessment - X20 IO Series
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20-X67 SafeIO - Connected Product Information Notice
- EU Declaration FS PLC X20
- EU Declaration of Conformity CE_Declaration_FS_X20
- FS EN 50156 Zertifikat SafeLOGIC, SafeIO
- FTZU 09 ATEX 0083X
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
Get a quote for a replacement
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.