# Series Connector, 16 mm2, 200 mm, 1P, 450 VAC, 80 A, Blue, Circuit Breakers

![Product image](https://novapart.co/image/farnell:3556538/)

**URL**: https://novapart.co/products/5ST3781-2/series-connector-16-mm2-200-mm-1p-450-vac-80-a
**SKU**: 5ST3781-2
**Manufacturer**: SIEMENS
**Category**: Circuit Protection || Circuit Breakers || Circuit Breaker Accessories
**Price**: €7.2300
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Product Range | SENTRON Series |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3556538/)

**5ST3781-2** 

**Data sheet** 

series connector, 1-pole, 200 mm, 16 mm2, blue, 750 V, 80 A 

|**Model**<br>~~I~~|**Model**<br>~~I~~|**Model**<br>~~I~~|**Model**<br>~~I~~|
|---|---|---|---|
|**product brand name**||SENTRON||
|**product designation**<br>~~rs~~||Series connector||
|**design of the product**||Accessories||
|**General technical data**||||
|**design of pole**||N||
|**Supply voltage**<br>~~a~~||||
|operatingvoltage at AC rated value||450 V||
|**Mechanical Design**<br>~~a~~||||
|**height**||34.3 mm||
|**depth**||22 mm||
|**length**<br>~~rs~~||200 mm||
|**Net Weight**||54g||
|**Approvals Certificates**||||
|**Environment**<br>**General Product Approval**||**General Product Approval**||
|Environmental Con-<br>firmations<br>Environmental Con-<br>firmations<br>Miscellaneous<br>~~—~~<br>~~—~~<br>~~FA~~D|||Confirmation|
|**General Product Ap-**<br>**proval**<br>**other**||||
|Confirmation<br>us||||
|CAs<br>[acpass||||
|**Further information**<br>~~eee~~||||
|**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,…)**||||
|https://www.siemens.com/lowvoltage/catalogs||||
|**Industry Mall (Online ordering system)**||||
|https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5ST3781-2||||
|**Service&Support (Manuals, Certificates, Characteristics, FAQs,...)**||||
|https://support.industry.siemens.com/cs/ww/en/ps/5ST3781-2||||
|**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)**||||
|https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5ST3781-2||||



5ST37812 Page 1/3 

Subject to change without notice © Copyright Siemens 

6/3/2026 

## **CAx-Online-Generator** 

https://www.siemens.com/cax 

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

**last modified:** 4/6/2026 

5ST37812 Page 2/3 

Subject to change without notice © Copyright Siemens 

6/3/2026 

5ST37812 Page 3/3 

Subject to change without notice © Copyright Siemens 

6/3/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/5ST3781-2/series-connector-16-mm2-200-mm-1p-450-vac-80-a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/5st3781-2/circuit-breaker-accessories/dp/3556538)
---

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