B&R X20MM4331
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.
Lifecycle & replacement
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 half bridge outputs |
General information
| Diagnostics / Module run/error | Yes, using LED status indicator and software |
| Diagnostics / Output | Yes, using LED status indicator and software |
| Diagnostics / I/O power supply | Yes, using LED status indicator and software |
| Power consumption / Bus | 0.01 W |
| Power consumption / Internal I/O | 0.8 W |
| Power consumption / External I/O | Corresponding to external load |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| 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 / KC | Yes |
| B&R ID code | 0xA976 |
| Status indicators | I/O function per channel, operating state, module status |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Motor output stage
| Current value measurement / Resolution | 100 mA |
| Current value measurement / Data collection | In high side branch |
| Protective circuit / External | 24 VDC power supply - maximum current 10 A (melting fuse) |
| 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 |
| Output protection | Thermal shutdown in the event of overcurrent or short circuit |
| Supply voltage | No reverse polarity protection |
| Insulation voltage between channel and bus | 500 Veff |
Digital outputs
| Recording current value on high branch / Resolution | 100 mA |
| Quantity | 4 |
| Nominal voltage | 24 VDC |
| Output protection | Thermal shutdown in the event of overcurrent or 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 |
Electrical properties
| Electrical isolation | Bus isolated from channel and internal I/O power supply Channel not isolated from channel and internal I/O power supply |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Installation elevation above sea level / 0 to 2000 m | No limitation |
| Installation elevation above sea level / >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Degree of protection per EN 60529 | IP20 |
Ambient conditions
| Temperature / Operation / Horizontal mounting orientation | 0 to 50°C |
| Temperature / Operation / Vertical mounting orientation | Not permitted |
| Temperature / Derating | See section "Derating". |
| Temperature / Storage | -25 to 70°C |
| Temperature / Transport | -25 to 70°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 terminal block X20TB12 separately. Order 1x bus module X20BM11 separately. |
| Pitch | 12.5⁺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
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20 IO - Connected Product Information Notice
- EU Declaration ATEX X20
- EU Declaration of conformity PLC X20
- FTZU 09 ATEX 0083X
- Safe cutoff of potential groups(en)
- UK Declaration PLC X20
- X20, X67 KC certificates
- X20 Package leaflet ATEX/CSA
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.