B&R X20cBM12
Bus module for 240 VAC I/O modules The internal I/O supply is interconnected 240 V coding for bus module, electronic module and terminal block The bus module serves as the base for all 240 VAC X20 I/O modules. The internal I/O supply is interconnected.
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
| Bus module | Bus module, 240 VAC keyed, internal I/O power supply connected through |
General information
| Power consumption / Bus | 0.13 W |
| Power consumption / Internal I/O | - |
| 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 / DNV | Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck) |
| Certifications / LR | ENV1 |
| Certifications / KR | Yes |
| Certifications / ABS | Yes |
| Certifications / BV | EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck |
| Additional power dissipation caused by actuators (resistive) [W] | - |
I/O power supply
| Nominal voltage | 24 VDC |
| Permissible contact load | 10 A |
Operating conditions
| Mounting orientation / Horizontal | Yes |
| Mounting orientation / Vertical | 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 | -25 to 60°C |
| Temperature / Operation / Vertical mounting orientation | -25 to 50°C |
| Temperature / Derating | - |
| 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
| Pitch | 12.5⁺⁰.² mm |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
Certificates
- 2226379 CSA Certificate of Compliance X20 X67
- ABS Certificate of Product Design Assessment - X20 IO Series
- 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
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
- RINA Type Approval Certificate - X20 / Power Panel T30
- TAA00000BJ DNV Type Approval Certificate X20
- UK Declaration PLC X20
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.