Short description
| Bus module | Power supply bus module, for double-width modules, 24 VDC keyed, internal I/O power supply interrupted to the left |
General information
| Power consumption | |
| Bus | 0.13 W |
| Internal I/O | - |
| Additional power dissipation caused by actuators (resistive) [W] | - |
| Certifications | |
| CE | Yes |
| UKCA | Yes |
| ATEX |
Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X |
| UL |
cULus E115267 Industrial control equipment |
| HazLoc |
cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| DNV |
Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck) |
| CCS | Yes |
| LR | ENV1 |
| KR | Yes |
| ABS | Yes |
| BV |
EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck |
| KC | Yes |
I/O power supply
| Nominal voltage | 24 VDC |
| Permissible contact load | 10 A |
Operating conditions
| Mounting orientation | |
| Horizontal | Yes |
| Vertical | Yes |
| Installation elevation above sea level | |
| 0 to 2000 m | No limitation |
| >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 |
| Vertical mounting orientation | -25 to 50°C |
| Derating | - |
| Storage | -40 to 85°C |
| Transport | -40 to 85°C |
| Relative humidity | |
| Operation | 5 to 95%, non-condensing |
| Storage | 5 to 95%, non-condensing |
| Transport | 5 to 95%, non-condensing |
Mechanical properties
| Pitch | 25+0.2 mm |
Material number:
X20BM21Description:
- For creating voltage groups
- The internal I/O supply is isolated to the left
The bus module serves as a basis for all double-width X20 I/O modules. The internal I/O supply is isolated to the left. This allows the bus module to be used to set up a separate voltage group if the X20BT9100 bus transmitter is used for the supply.
| Automation Studio HW Upgrades | Version (Date) | Download |
|---|---|---|
| V4.0 HW Upgrade (X20BM21) | EXE / 424 KB |
| Documentation | Version (Date) | Download |
|---|---|---|
| Data sheet X20BM21 | PDF / 177 KB | |
| Installation- / EMC-Guide | PDF / 20 MB | |
| X20 Package leaflet ATEX/CSA | PDF / 2 MB | |
| X20 System User´s Manual | PDF / 7 MB |
| E-CAD (Electro or EPLAN Templates) | Version (Date) | Download |
|---|---|---|
| X20 EPLAN P8 from V2.4 | EXE / 160 MB |
| M-CAD (Mechan. Templates) | Version (Date) | Download |
|---|---|---|
| 3D File DXF/STEP X20BM31/2 | ZIP / 325 KB |