# Auxiliary Switch, 3KC Series Transfer Switching Equipment
**URL**: https://novapart.co/products/3KC9803-1/auxiliary-switch-3kc-series-transfer-switching
**SKU**: 3KC9803-1
**Manufacturer**: SIEMENS
**Category**: Automation & Process Control || Industrial Switches & Control Stations || Industrial Switch Accessories
**Price**: €101.6200
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3437753/)
**3KC9803-1**
**Data sheet**
|||Accessory for 3KC4, 3KC8 Auxiliary switch contains 2 change-over contacts: 1
change-over contact for POS I, II for 250-630 A leading contains 1 unit incl. set of
screws|
|---|---|---|
|**Model**
~~a~~|||
|**product brand name**
~~a~~||SENTRON
~~a~~|
|**product designation**||Accessories for transfer switchingequipment|
|**Auxiliary circuit**
~~ee~~|||
|**number of CO contacts of auxiliary contacts instantaneous**
**contact**
~~ee~~||0
~~ee~~|
|**number of NC contacts for auxiliary contacts instantaneous**
**contact**||0|
|**number of NO contacts for auxiliary contacts instantaneous**
**contact**||0|
|**operational current of auxiliary contacts**|||
|● at AC-12 at 230 V||16 A|
|● at AC-15 at 230 V||4 A|
|**Suitability**
~~re~~|||
|**suitability for use**
~~re~~||3KC4
~~re~~|
|**Product details**
~~re~~|||
|**product description**
~~re~~||Auxiliary switch with 2 CO contacts: One for position I and II, leading, AC1 2 A
250 V AC
~~re~~|
|**Connections**
~~a~~|||
|**type of electrical connection**
~~a~~||0.2 to 2.5 mm²
~~a~~|
|● for auxiliaryand control circuit||Box terminal|
|**Mechanical Design**
~~ee~~|||
|**fastening method**
~~ee~~||screw fixing
~~ee~~|
|**Net Weight**||128g|
|**Approvals Certificates**
~~a~~|||
|**Environment**
~~a~~|**General Product Approval**
~~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/
**last modified:** 4/3/2025
3KC98031 Page 2/2
Subject to change without notice © Copyright Siemens
5/31/2026
## Links
- [View this product on Novapart](https://novapart.co/products/3KC9803-1/auxiliary-switch-3kc-series-transfer-switching)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3kc9803-1/control-gear-switch-gear-accessories/dp/3437753)
---
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