8US1921-2BC00

**8US1921-2BC00** 

**Data sheet** 

busbar system, accessory busbar center-to-center spacing 40, 60 mm connection terminal busbar thickness: 10 mm+TT profile 16-120 mm2 

|**Model**<br>~~a~~|**Model**<br>~~a~~|**Model**<br>~~a~~|
|---|---|---|
|**product brand name**|SENTRON||
|**product designation**<br>Connectingterminal<br>~~es~~|||
|**design of the product**|Accessories||
|**Supply voltage**|||
|operatingvoltage at AC rated value|690 V||
|**Dissipation**<br>~~a~~|||
|**power loss[W]**|0 W||
|**suitability for use**|for busbars 12, 15, 20, 25, 30 x 10 mm and mountingrails||
|**according UL**<br>~~a~~|||
|**operational current according to UL 508 rated value**|255 A||
|**Connections**<br>~~a~~|||
|**type of connectable conductor cross-sections for AWG**|WAG 4MCM 250||
|**cables**|||
|type of connectable conductor cross-sections for copper|16-120 mm²||
|conductor stranded|||
|**type of connectable conductor cross-sections of the**|Cu lam. 2x9x0.8 mm or 6x15.5x0.8 mm or 10x15.5x0.5 mm||
|**laminated conductor rails**|||
|**Mechanical Design**<br>~~a~~|||
|**Net Weight**|110g||
|**Approvals Certificates**<br>~~a~~|||
|**Environment**<br>**General Product Approval**|||
|Environmental Con-<br>firmations<br>Environmental Con-<br>firmations<br>~~me~~|Confirmation<br> AY~~E~~||
|**General Product Approval**<br>**Test Certificates**<br>**other**|||
|Miscellaneous<br>Confirmation<br>c<br>eS||Miscellaneous<br>~~—_~~|
|**Further information**<br>~~ee~~|||
|**Information on the packaging**|||
|https://support.industry.siemens.com/cs/ww/en/view/109813875|||
|**Information for data generation and storage**|||
|https://support.industry.siemens.com/cs/ww/en/view/109995012|||
|**Information- and Downloadcenter(Catalogs, Brochures,…)**|||



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**Tender specifications** https://www.siemens.com/specifications 

**Characteristic curves** https://curves.simaris.siemens.com/curves/<mmp_prod_noCOMP="HAUPT"></mmp_prod__no> 

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Subject to change without notice © Copyright Siemens 

6/5/2026