3KC9803-1

**3KC9803-1** 

**Data sheet** 

|||Accessory for 3KC4, 3KC8 Auxiliary switch contains 2 change-over contacts: 1<br>change-over contact for POS I, II for 250-630 A leading contains 1 unit incl. set of<br>screws|
|---|---|---|
|**Model**<br>~~a~~|||
|**product brand name**<br>~~a~~||SENTRON<br>~~a~~|
|**product designation**||Accessories for transfer switchingequipment|
|**Auxiliary circuit**<br>~~ee~~|||
|**number of CO contacts of auxiliary contacts instantaneous**<br>**contact**<br>~~ee~~||0<br>~~ee~~|
|**number of NC contacts for auxiliary contacts instantaneous**<br>**contact**||0|
|**number of NO contacts for auxiliary contacts instantaneous**<br>**contact**||0|
|**operational current of auxiliary contacts**|||
|● at AC-12 at 230 V||16 A|
|● at AC-15 at 230 V||4 A|
|**Suitability**<br>~~re~~|||
|**suitability for use**<br>~~re~~||3KC4<br>~~re~~|
|**Product details**<br>~~re~~|||
|**product description**<br>~~re~~||Auxiliary switch with 2 CO contacts: One for position I and II, leading, AC1 2 A<br>250 V AC<br>~~re~~|
|**Connections**<br>~~a~~|||
|**type of electrical connection**<br>~~a~~||0.2 to 2.5 mm²<br>~~a~~|
|● for auxiliaryand control circuit||Box terminal|
|**Mechanical Design**<br>~~ee~~|||
|**fastening method**<br>~~ee~~||screw fixing<br>~~ee~~|
|**Net Weight**||128g|
|**Approvals Certificates**<br>~~a~~|||
|**Environment**<br>~~a~~|**General Product Approval**<br>~~a~~||



~~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 **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=3KC9803-1 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3KC9803-1 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3KC9803-1 

3KC98031 Page 1/2 

Subject to change without notice © Copyright Siemens 

5/31/2026 

## **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:** 4/3/2025 

3KC98031 Page 2/2 

Subject to change without notice © Copyright Siemens 

5/31/2026