3KC9603-1

**3KC9603-1** 

**Data sheet** 

Accessory for 3KC3, 3KC6 Auxiliary switch contains 3 change-over contacts: 1 change-over contact for Position I, O, II for 40-160 A with separate contacts contains 1 unit incl. set of screws 

|**Model**<br>~~ee~~|**Model**<br>~~ee~~|**Model**<br>~~ee~~|**Model**<br>~~ee~~|**Model**<br>~~ee~~|
|---|---|---|---|---|
|**product brand name**||SENTRON|||
|**product designation**||Accessories for transfer switchingequipment|||
|**Auxiliary circuit**<br>~~a~~|||||
|**number of CO contacts of auxiliary contacts instantaneous**||3|||
|**contact**|||||
|**number of NC contacts for auxiliary contacts instantaneous**||0|||
|**contact**|||||
|**number of NO contacts for auxiliary contacts instantaneous**||0|||
|**contact**|||||
|**Suitability**<br>~~a~~|||||
|**suitability for use**||3KC3, 3KC6|||
|**Product details**<br>~~ee~~|||||
|**product description**||Auxiliary switch with 3 CO contacts: One for position I, O and II, with separate||Auxiliary switch with 3 CO contacts: One for position I, O and II, with separate|
|||COM connection, AC13 2 A 250 V AC|||
|**Connections**<br>~~re~~|||||
|**type of electrical connection**||0.5 to 2.5 mm² solid / 0.5 to 1.5 mm² stranded|||
|● for auxiliaryand control circuit||Box terminal|||
|**Mechanical Design**<br>~~a~~|||||
|**height**||48.4 mm|||
|**width**||104 mm|||
|**depth**||17.8 mm|||
|**fastening method**||screw fixing|||
|**Net Weight**||65g|||
|**Approvals Certificates**<br>~~ee~~|||||
|**Environment**<br>**General Product Approval**|||||
|Environmental Con-<br>firmations<br>Miscellaneous<br>~~_~~<br>~~~—~~||EAD|C&|Confirmation|
|**General Product Ap-**<br>**proval**<br>**Test Certificates**<br>**other**|||||
|Type Test Certific-<br>ates/Test Report<br>Confirmation<br>UuK~~—~~<br>~~—~~|||||



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5/31/2026 

**Further information 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=3KC9603-1 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3KC9603-1 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3KC9603-1 **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> 

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