B&R X20SC2432
2 safe digital inputs, sink circuit 2 pulse outputs Software input filter configurable for each channel 2 safe relay outputs Output type "Relay" Relay module for 48 VAC / 24 VDC Switching current 6 A Normally open contact Single-channel isolated outputs The module is equipped with 2 safe digital inputs and 2 safe relay outputs. It is designed for a nominal voltage of 24 VDC. The module can be used to read digital signals and for floating control of actuators 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. Safety relays are installed in the module. The positively driven feedback contacts are evaluated internally by the module. Safe digital output channels provide protection against automatic restart when network errors occur. This module is designed for X20 12-pin terminal blocks.
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Technical specifications
Short description
| I/O module | 2 safe type A digital inputs, 2 pulse outputs, 24 VDC, 2 relays with 1 normally open contact each, 48 VAC / 6 A, 24 VDC / 6 A |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Outputs | 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 | 0.26 W |
| Power consumption / Internal I/O | 1.15 W |
| Additional power dissipation caused by actuators (resistive) [W] / Relay outputs | 1.44 |
| Additional power dissipation caused by actuators (resistive) [W] / Pulse outputs | 0.1 |
| Electrical isolation / Channel - Bus | Yes |
| Electrical isolation / Channel - Channel | Yes |
| Certifications / Relays / EN 50155 | Yes |
| Certifications / Relays / EN 61810-3 | Yes |
| 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 | 0xA7A4 |
| Status indicators | I/O function per channel, operating state, module status |
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 | 2 |
| 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 |
| Input resistance | Min. 5.23 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 |
Relay outputs
| Switching delay / 0 → 1 | <50 ms |
| Switching delay / 1 → 0 | <50 ms |
| Max. switching capacity / AC1 | 48 VAC / 6 A |
| Max. switching capacity / AC15 | 48 VAC / 3 A |
| Max. switching capacity / DC1 | 24 VDC / 6 A |
| Max. switching capacity / DC13 | 24 VDC / 5 A / 0.1 Hz |
| Max. switching capacity / UL 508 | B300 / R300 |
| Quantity | 2 |
| Variant | Relay / Normally open contact, internal high-side and low-side control |
| Nominal output current | 5 mA to 6 A |
| Diagnostic status | Contact position determined by positively driven contacts |
| Max. switching frequency | See section "Inrush current behavior for output channels". |
| Insulation voltage between channel and bus | Safe disconnection of 300 VAC per EN 50178 |
| Insulation voltage between channel and channel | 48 VAC |
| Contact resistance (without terminal block) | 20 mΩ |
| Contact service life | See "Contact service life". |
| Short-circuit/Overload protection | External 6 A gL/gG fuse (melting fuse), LS automat C characteristic 1.6 A |
| Switching voltage range | 5 to 24 VDC, 5 to 48 VAC |
| Coil voltage | 24 VDC -15% / +20% |
| Short-circuit proof | Yes, 1000 A (with specified short-circuit/overload protection) |
| Max. inrush current | 30 A for 20 ms |
| Overvoltage category per EN 60664-1 | II |
Pulse outputs
| Quantity | 2 |
| Variant | Push-Pull |
| Nominal output current | 50 mA |
| Output protection | Shutdown of individual channels in the event of overload or short circuit |
| Peak short-circuit current | 25 A for 5 ms |
| Short-circuit current | 1.4 Aeff |
| Leakage current when the output is switched off | 0.1 mA |
| RDS(on) | 20 Ω |
| Switching voltage | I/O power supply minus voltage drop due to RDS(on) |
| Total nominal current | 100 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
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.