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3RV2921-1M
Signalling 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 | 23.4 € |
| Current stock | 10+ |
| Lead time | 30 days |
**3RV2921-1M** **Data sheet** signaling switch for circuit breaker 3RV2 with screw terminal ||signaling switch for circuit breaker 3RV2 with screw terminal| |---|---| |**product brand name**|SIRIUS| |**product category**|Auxiliaryswitch| |**product designation**|signalingswitch| |**design of theproduct**|separate tripped signal and short circuit alarm, 1 NO + 1 NC each| |**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**|96g| |number of NC contacts for auxiliary contacts instantaneous<br>contact|1| |number of NO contacts for auxiliary contacts instantaneous<br>contact|1| |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 3RV29211M Page 1/4 5/29/2026 |**Ambient conditions**<br>~~ccs~~|**Ambient conditions**<br>~~ccs~~| |---|---| |**ambient temperature**<br>~~ccs~~|~~ccs~~| |● duringoperation|-20 ... +60 °C| |● duringstorage<br>~~ee~~|-50 ... +80 °C<br>~~ee~~| |Electrical Safety<br>~~ee~~|| |**protection class IP on the front according to IEC 60529**<br>~~ee~~|IP20<br>~~ee~~| |**touch protection on the front according to IEC 60529**|finger-safe, for vertical contact from the front| |**Installation/ mounting/ dimensions**<br>~~css~~|| |**fastening method**<br>~~css~~|plug-in fixing<br>~~css~~| |**height**<br>~~ene~~|90 mm<br>~~ene~~| |**width**<br>~~ene~~|18 mm<br>~~ene~~| |**depth**<br>~~ene~~|68 mm<br>~~ene~~| |**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(18 ... 14)| |**AWG number as coded connectable conductor cross**<br>**section for auxiliary contacts**|18 ... 14| |**Approvals Certificates**|| |Environmental Product Declaration<br>● global warming potential [CO2 eq] / during manufacturing<br>0.238 kg<br>● global warming potential [CO2 eq] / during operation<br>4.2 kg<br>● global warming potential [CO2 eq] / after end of life<br>0.0053 kg<br>● global warming potential [CO2 eq] / total<br>4.44 kg<br>**Environment**<br>**General Product Approval**|| |**General Product Approval**||**Test Certificates**||**Maritime application**|| |---|---|---|---|---|---| |c|rw|Special Test Certific-<br>ate|Type Test Certific-<br>ates/Test Report<br>~~—~~|®@|| |**Maritime application**||||**other**|| ||=|§§|S|Miscellaneous<br>~~_~~|Confirmation<br>~~_~~| |**other**||**Railway**|||| |Miscellaneous<br>Special Test Certific-<br>ate<br>Confirmation<br>~~——~~|||||| **Further information** ~~i~~ Subject to change without notice © Copyright Siemens 3RV29211M 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=3RV2921-1M **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV2921-1M **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RV2921-1M **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV2921-1M&lang=en **==> picture [226 x 333] intentionally omitted <==** **----- Start of picture text -----**<br> 57 65 77 85<br>8 6 8 6<br>5 6 7 8<br>**----- End of picture text -----**<br> **last modified:** **==> picture [34 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> 7/22/2025<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3RV29211M Page 3/4 5/29/2026 Subject to change without notice © Copyright Siemens 3RV29211M Page 4/4 5/29/2026
Updated at June 7, 2026
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