B&R X20SI4100
4 safe digital inputs 4 pulse outputs Sink circuit Software input filter configurable for each channel This module is equipped with 4 safe digital inputs. It is designed for a nominal voltage of 24 VDC. The module can be used to read various digital signals in safety-related applications up to PL e or SIL 3. The module is equipped with filters that are individually configurable for switch-on and switch-off behavior. The module also provides pulse signals for diagnosing the sensor line. This module is designed for X20 12-pin terminal blocks.
Lifecycle & replacement
Lifecycle status not indexed
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
Short description
| I/O module | 4 safe type A digital inputs, 4 pulse outputs, 24 VDC |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Inputs | Yes, using LED status indicator and software |
| Blackout mode / Scope | Module |
| Blackout mode / Function | Module functionality |
| Blackout mode / Standalone mode | No |
| Power consumption / Bus | 0.32 W |
| Power consumption / Internal I/O | 1.25 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, up to SIL 3 IEC 62061, up to SIL 3 ISO 13849-1, up to Cat. 4 / PL e IEC 61511, up to SIL 3 |
| Certifications / Functional safety #3 | EN 50156-1 |
| 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 cULus E537419 Engine generator controller |
| 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 / CCS | Yes |
| 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 |
| Certifications / KC | Yes |
| B&R ID code | 0x1DBD |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | 0.6 |
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 inputs
| Input filter / Hardware | ≤150 μs |
| Input filter / Software | Configurable between 0 and 500 ms |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Quantity | 4 |
| Variant | Type A |
| Nominal voltage | 24 VDC |
| Input characteristics per EN 61131-2 | Type 1 |
| Input circuit | Sink |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Min. 2 mA to max. 4.59 mA. Hardware revision J0 and later: Min. 2 mA to max. 3.28 mA. |
| Input resistance | Min. 5.23 kΩ, hardware revision J0 and later: Min. 7.33 kΩ |
| Error detection time | 100 ms |
| Insulation voltage between channel and bus | 500 Veff |
| Line length between signal source (pulse output or external signal) and input | Max. 60 m with unshielded line Max. 400 m with shielded line |
Pulse outputs
| Quantity | 4 |
| Variant | Push-Pull |
| Nominal output current | 100 mA, hardware revision J0 and later: 50 mA |
| Output protection | Thermal shutdown of all channels in the event of overload or short circuit, hardware revision J0 and later: Shutdown of individual channels in the event of overload or short circuit |
| Peak short-circuit current | 300 mA, hardware revision J0 and later: 25 A for 15 µs |
| Short-circuit current | 100 mAeff |
| Leakage current when the output is switched off | 0.1 mA |
| RDS(on) | 60 Ω |
| Switching voltage | I/O power supply minus voltage drop due to RDS(on) |
| Total nominal current | 400 mA, hardware revision J0 and later: 200 mA |
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 | 0 to 60°C |
| Temperature / Operation / Vertical mounting orientation | 0 to 50°C |
| Temperature / Derating | See section "Derating". |
| Temperature / Storage | -40 to 85°C |
| Temperature / Transport | -40 to 85°C |
| Relative humidity / Operation | 5 to 95%, non-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
- CCS Type Approval Certificate - X20
- E115267 UL Certificate of Compliance X20
- E537419 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
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.