3NC1020

**3NC1020** 

## **Data sheet** 

SITOR cylindrical fuse link, 10 x 38 mm, 20 A, aR, Un AC: 600 V, Un DC: 700 V, DC according to UL 

|**Model**<br>~~a~~|**Model**<br>~~a~~|**Model**<br>~~a~~|
|---|---|---|
|**product brand name**<br>SENTRON|||
|**product designation**<br>SITOR fuse link|||
|**design of the product**<br>DC acc. to UL|||
|**General technical data**<br>~~a~~|||
|**operating class of the fuse link**<br>aR|||
|**type of voltage of the operating voltage**<br>AC|||
|supplyvoltage at DC<br>700 V|||
|**Dissipation**<br>~~ee~~|||
|**power loss[W]**<br>4.8 W|||
|power loss [W] for rated value of the current at AC in hot<br>5 W|||
|operatingstate per pole|||
|**Main circuit**<br>~~ee~~|||
|operational current rated value<br>20 A|||
|**Product details**<br>~~a~~|||
|product component striker<br>No|||
|**Mechanical Design**<br>~~a~~|||
|**mounting position**<br>Any,preferablyvertical|||
|**Net Weight**<br>9g|||
|**Approvals Certificates**<br>~~|~~|||
|**Environment**<br>**General Product Approval**|||
|Environmental Con-<br>firmations<br>Environmental Con-<br>firmations<br>~~BO~~|~|fl|
|**General Product Approval**<br>**other**|||
|Confirmation<br>~~a~~<br>zoe<br>ce<br>eA|Confirmation<br>~~ee~~||



~~e~~ **Further information** ~~e~~ **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 

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Subject to change without notice © Copyright Siemens 

6/4/2026 

## **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=3NC1020 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3NC1020 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3NC1020 **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:** 11/14/2025 

3NC1020 Page 2/3 

Subject to change without notice © Copyright Siemens 

6/4/2026 

3NC1020 Page 3/3 

Subject to change without notice © Copyright Siemens 

6/4/2026