# Zone Selective Interlocking, 3WL Series Air Circuit Breaker

![Product image](https://novapart.co/image/farnell:3474774/)

**URL**: https://novapart.co/products/3WL9111-0AT21-0AA0/zone-selective-interlocking-3wl-series-air-circuit
**SKU**: 3WL9111-0AT21-0AA0
**Manufacturer**: SIEMENS
**Category**: Circuit Protection || Circuit Breakers || Circuit Breaker Accessories
**Price**: €378.8800
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Product Range | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3474774/)

**3WL9111-0AT21-0AA0** 

## **Data sheet** 

||accessories circuit breaker 3WL zone selective Interlocking f. ETU45B, 76b can be|accessories circuit breaker 3WL zone selective Interlocking f. ETU45B, 76b can be|accessories circuit breaker 3WL zone selective Interlocking f. ETU45B, 76b can be|accessories circuit breaker 3WL zone selective Interlocking f. ETU45B, 76b can be||
|---|---|---|---|---|---|
||connected to cubicle bus|connected to cubicle bus||||
|**Model**<br>~~a~~||||||
|**product brand name**|SENTRON|||||
|**product designation**<br>Accessories for 3WL circuit breaker<br>~~es~~||||||
|**design of the product**|Time-selective protection control for ETU45B||Time-selective protection control for ETU45B|||
|**Accessories**||||||
|**accessories**|other|||||
|**Mechanical Design**<br>~~a~~||||||
|**Net Weight**|0.24 kg|||||
|**Approvals Certificates**<br>~~a~~||||||
|**Environment**<br>**General Product Approval**||||||
|Environmental Con-<br>firmations<br>Environmental Con-<br>firmations<br>Confirmation<br>~~—~~<br>~~—~~<br>fT<br>YK<br>ce||||||
|**Test Certificates**<br>**other**||||||
|Miscellaneous<br>Confirmation||||||
|~~OO~~||||||
|QC PASS||||||
|**Further information**<br>~~a~~||||||
|**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=3WL9111-0AT21-0AA0||||||
|**Service&Support (Manuals, Certificates, Characteristics, FAQs,...)**||||||
|https://support.industry.siemens.com/cs/ww/en/ps/3WL9111-0AT21-0AA0||||||
|**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)**||||||
|https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3WL9111-0AT21-0AA0||||||
|**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:**|5/24/2025|||||



Subject to change without notice © Copyright Siemens 

3WL91110AT210AA0 Page 1/1 

5/30/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/3WL9111-0AT21-0AA0/zone-selective-interlocking-3wl-series-air-circuit)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3wl9111-0at21-0aa0/circuit-breaker-accessories/dp/3474774)
---

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