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3RV2901-1B
Auxiliary Switch, for 3RV2 Series Circuit Breaker
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SIEMENS
- Product type: Circuit Breaker Accessories
- Product Range: SIRIUS 3RV2 Series
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 12.35 € |
| Current stock | 10+ |
| Lead time | 30 days |
**3RV2901-1B** **Data sheet** Auxiliary switch can be mounted on the side 2 NO, screw terminal for circuit breaker 3RV2 ||Auxiliary switch can be mounted on the side 2 NO, screw terminal for circuit<br>breaker 3RV2| |---|---| |**product brand name**|SIRIUS| |**product category**|Auxiliaryswitch| |**product designation**|auxiliaryswitch| |**design of theproduct**|lateral auxiliaryswitches| |**product type designation**|3RV29| |**General technical data**<br>~~|~~|| |**certificate of suitability**<br>~~|~~|CE / UL / CSA / CCC<br>~~|~~| |**size of the circuit-breaker**|S00, S0, S2, S3| |**display version LED**|No| |**insulation voltage rated value**|690 V| |**degree ofpollution**|3| |**surge voltage resistance rated value**|6 kV| |**protection class IP on the front**|| |● accordingto IEC 60529|IP20| |●|IP20| |**reference code according to IEC 81346-2**|Q| |**Substance Prohibitance(day/month/year)**|10/01/2009| |**Net Weight**|44g| |number of NC contacts for auxiliary contacts instantaneous<br>contact|0| |number of NO contacts for auxiliary contacts instantaneous<br>contact|2| |number of CO contacts of auxiliary contacts instantaneous<br>contact|0| |operational current at AC-15 at 690 V rated value|1 A| |**operational current of auxiliary contacts at AC-12**|| |● at 24 V|10 A| |● at 230 V|10 A| |● at 400 V|10 A| |● at 690 V|10 A| |**operational current of auxiliary contacts at AC-12 maximum**|10 A| |**operational current of auxiliary contacts at AC-15**|| |● at 24 V|6 A| |● at 230 V|4 A| |● at 400 V|3 A| |**operational current of auxiliary contacts at DC-13**|| |● at 24 V|2 A| |● at 110 V|0.5 A| |● at 220 V|0.25 A| |● at 250 V|0.25 A| Subject to change without notice © Copyright Siemens 3RV29011B Page 1/4 5/29/2026 |**Ambient conditions**<br>~~a~~|**Ambient conditions**<br>~~a~~|**Ambient conditions**<br>~~a~~|**Ambient conditions**<br>~~a~~| |---|---|---|---| |**ambient temperature**|||| |● duringoperation|-20 ... +60 °C||| |● duringstorage|-50 ... +80 °C||| |Electrical Safety<br>**protection class IP on the front according to IEC 60529**<br>IP20<br>~~a~~|||| |**touch protection on the front according to IEC 60529**|finger-safe, for vertical contact from the front|er-safe, for vertical contact from the front|| |**Installation/ mounting/ dimensions**<br>~~|~~|||| |**fastening method**|plug-in fixing||| |**height**|90 mm||| |**width**<br>9.5 mm<br>~~SO~~|||| |**depth**|70 mm||| |**Connections/ Terminals**|||| |type of electrical connection for auxiliaryand control circuit|screw-type terminals||| |**connectable conductor cross-section for auxiliary contacts**|||| |● solid or stranded|0.5 ... 2.5 mm²||| |● finelystranded with core endprocessing|0.5 ... 2.5 mm²||| |**type of connectable conductor cross-sections**|||| |● for auxiliarycontacts|||| |— solid|2x(0.5 ... 1.5 mm²), 2x(0.75 ... 2.5 mm²)||| |— finelystranded with core endprocessing|2x(0.5 ... 1.5 mm²), 2x(0.75 ... 2.5 mm²)||| |● for AWG cables for auxiliarycontacts|2x(20 ... 14)||| |**AWG number as coded connectable conductor cross**|20 ... 14||| |**section for auxiliary contacts**|||| |**Approvals Certificates**<br>Environmental Product Declaration<br>~~SS~~|||| |● global warming potential [CO2 eq] / during manufacturing|0.238 kg||| |● global warming potential [CO2 eq] / during operation|4.2 kg||| |● global warming potential [CO2 eq] / after end of life|0.0053 kg||| |● global warming potential [CO2 eq] / total|4.44 kg||| |**Environment**<br>**General Product Approval**|||| |Environmental Con-|||| |firmations|||| |**General Product Approval**<br>**Test Certificates**||**Maritime application**|| |Special Test Certific-<br>ate<br>Type Test Certific-<br>ates/Test Report<br>C€é<br>UK ~~oe~~<br>Sf<br>6A||©|| |**Maritime application**||**other**|| |~~a~~||Confirmation|Miscellaneous| |**other**|**Railway**||| |Confirmation<br>Miscellaneous|Confirmation|Special Test Certific-|| |||ate|| ~~a~~ **Further information** Subject to change without notice © Copyright Siemens 3RV29011B Page 2/4 5/29/2026 ## **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=3RV2901-1B **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV2901-1B **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RV2901-1B **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV2901-1B&lang=en **==> picture [203 x 225] intentionally omitted <==** Subject to change without notice © Copyright Siemens 3RV29011B Page 3/4 5/29/2026 **==> picture [77 x 327] intentionally omitted <==** **----- Start of picture text -----**<br> 33 43<br>34 44<br>**----- End of picture text -----**<br> **last modified:** **==> picture [34 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> 4/17/2026<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3RV29011B Page 4/4 5/29/2026
Updated at June 7, 2026
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