| SWITCH DISCONNECTOR IU = 250 A, 3-POLE WITH DOOR COUPLING RED. MECHAN. BLACK |
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| General technical details: |
| Number of poles | | 3 |
| Acceptability for application / emergency stop switch | | Yes |
| Acceptability for application / safety cut-out switch | | Yes |
| type of voltage | | AC/DC |
| Breaking capacity limit short-circuit current (lcu) / at 400 V / rated value | kA | 100 |
| Item designation | | |
- according to DIN EN 61346-2
| | Q |
- according to DIN 40719 extendable after IEC 204-2 / according to IEC 750
| | Q |
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| Main circuit: |
| Design of the electrical connection | | |
| | | Flat connector |
| Operating voltage / rated value | V | 690 |
| Operating voltage / for DC / rated value | V | 440 |
| Operating voltage / at 50/60 Hz / for AC / rated value | V | 690 |
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| Installation/mounting/dimensions: |
| Design of the load switch | | |
| | | No |
| Type of the driving mechanism | | |
| | | No |
| Width | m | 168 |
| Height | m | 152 |
| Depth | m | 81 |
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| Ambient conditions: |
| Ambient temperature / during operating | °C | -20… 45 |
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| Certificates/approvals: |
| General Product Approval | other | | ROSTEST | Manufacturer | | | | | |
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| Further information: |
| Information- and Downloadcenter (Catalogs, Brochures,…) http://www.siemens.com/lowvoltage/catalogs |
| Industry Mall (Online-Bestellsystem) http://www.siemens.com/lowvoltage/mall |
| Service&Support (Manuals, Certificates, Characteristics, FAQs,...) http://support.automation.siemens.com/WW/view/en/3KA7123-3AC00/all |
| Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...) http://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3KA7123-3AC00 |
| CAx-Online-Generator http://www.siemens.com/cax |
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| last change: | Oct 31, 2011 |
