# M12 Feeder, AS-Interface, AS-I and Uaux, 1m Cable, with M12 Socket Angled IP67/IP68/IP69K, 4 A

![Product image](https://novapart.co/image/farnell:3554886/)

**URL**: https://novapart.co/products/3RK1901-2NR21/m12-feeder-as-interface-i-and-uaux-1m-cable-with
**SKU**: 3RK1901-2NR21
**Manufacturer**: SIEMENS
**Category**: Automation & Process Control || Process Controllers, Programmers & Indicators || Controllers || Controller Accessories
**Price**: €41.5900
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3554886/)

**3RK1901-2NR21** 

**Data sheet** 

|~~—_~~|~~—_~~|AS-Interface M12 branch U_ASI and Uaux, 1 m cable with M12 cable socket<br>angled IP67/68/69K, max. 4 A<br>~~—_~~|AS-Interface M12 branch U_ASI and Uaux, 1 m cable with M12 cable socket<br>angled IP67/68/69K, max. 4 A<br>~~—_~~|
|---|---|---|---|
|**product category**<br>~~—_~~||AS-Interface accessories<br>~~—_~~||
|**product designation**<br>~~—_~~||AS-i flat cable transition to M12<br>~~—_~~||
|**suitability for use**<br>~~—_~~||AS-i flat cable(yellow)and AUX flat cable(black)connections<br>~~—_~~||
|**General technical data**<br>~~—_~~||||
|**operating voltage according to AS-Interface specification**<br>~~—_~~||26.5 ... 31.6 V<br>~~—_~~||
|**operational current rated value**||3 A||
|**number ofpoles**||4||
|**contact rating maximum**||4 A||
|**protection class IP**||IP67, IP68, IP69K||
|**Substance Prohibitance(day/month/year)**||07/01/2006||
|**Net Weight**||0.077 kg||
|**Installation/ mounting/ dimensions**||||
|**mounting type**||screw mountingon the lowerpart of enclosure||
|**tightening torque of fixing screw minimum**||1.65 N·m||
|**tightening torque of fixing screw maximum**||1.65 N·m||
|**height**||22 mm||
|**width**||27.7 mm||
|**length**||40.5 mm||
|**Ambient conditions**||||
|**ambient temperature**||||
|● duringoperation||-25 ... +75 °C||
|● duringstorage||-25 ... +85 °C||
|**Connections/ Terminals**||||
|**type of electrical connection**||insulationpiercingmethod for AS-Interface flat cable||
|**feeder type**||round cable with M12 socket, A-coding||
|**mounting type of the flat cable**||hinged cover with stainless steel bolt||
|**installation or assembly note**||flat cable end notpermitted in the branch||
|**contact assignment of the M12 connection**||||
|● atpin 1||ASI+||
|● atpin 2||not connected||
|● atpin 3||ASI-||
|● atpin 4||AUX+||
|● atpin 5||not connected||
|**length of the round cable**||1 m||
|**connectable conductor cross-section of the round cable**||0.34 mm²||
|**Approvals Certificates**||||
|**Environment**|**General Product Approval**||**EMV**|



Subject to change without notice © Copyright Siemens 

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e Confirmation ~~ee~~ **Further information** 

## **Siemens is working on the renewal of the current EAC certificates.** 

Please contact your local Siemens office on the status of validity of the EAC certification if you intend to import or offer to supply these products to an EAC relevant market (other than the sanctioned EAEU member states Russia or Belarus). 

**Siemens has decided to exit the Russian market (see here).** 

https://press.siemens.com/global/en/pressrelease/siemens-wind-down-russian-business 

## **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/ic10 

**Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RK1901-2NR21 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RK1901-2NR21 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RK1901-2NR21 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RK1901-2NR21&lang=en 

**last modified:** 

12/15/2025 

Subject to change without notice © Copyright Siemens 

3RK19012NR21 Page 2/3 

5/30/2026 

Subject to change without notice © Copyright Siemens 

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5/30/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/3RK1901-2NR21/m12-feeder-as-interface-i-and-uaux-1m-cable-with)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3rk1901-2nr21/controller-accessories/dp/3554886)
---

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