3RV2921-4M

**3RV2921-4M** 

**Data sheet** 

||signaling switch for circuit breaker 3RV2 with ring cable lug connection|
|---|---|
|**product brand name**|SIRIUS|
|**product category**|Auxiliaryswitch|
|**product designation**<br>~~Oe~~|signalingswitch<br>~~Oe~~|
|**design of the product**<br>~~Oe~~|separate tripped signal and short circuit alarm, 1 NO + 1 NC each<br>~~Oe~~|
|**General technical data**||
|**certificate of suitability**|CE / UL / CSA / CCC|
|**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|IP00|
|●|IP20|
|**reference code according to IEC 81346-2**|Q|
|**Substance Prohibitance(day/month/year)**|10/01/2009|
|**Net Weight**|101g|
|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|
|**Ambient conditions**<br>~~|~~||
|**ambient temperature**<br>~~|~~|~~|~~|
|● duringoperation|-20 ... +60 °C|
|● duringstorage<br>~~OOOO~~|-50 ... +80 °C<br>~~OOOO~~|
|Electrical Safety<br>~~OOOO~~||
|**protection class IP on the front according to IEC 60529**<br>~~OOOO~~|IP00<br>~~OOOO~~|
|**Installation/ mounting/ dimensions**<br>~~|~~||
|**fastening method**<br>~~|~~|plug-in fixing<br>~~|~~|
|**height**<br>~~Oc~~|90 mm<br>~~Oc~~|
|**width**<br>~~Oc~~|18 mm<br>~~Oc~~|
|**depth**<br>~~Oc~~|68 mm<br>~~Oc~~|
|**Connections/ Terminals**||



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type of electrical connection for auxiliary and control circuit ring terminal lug connection **Approvals Certificates** Environmental Product Declaration ● 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 General Product Approval** Environmental Confirmations ~~Bp~~ Ie EA **General Product Approval Test Certificates Maritime application** - - Special Test Certific Type Test Certific ate ates/Test Report cK ~~~~~~ @ © **Maritime application other** Miscellaneous Confirmation ~~a~~ **other Railway** Miscellaneous Confirmation Special Test Certificate ~~=~~ 

~~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/ic10 

**Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RV2921-4M **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV2921-4M **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RV2921-4M 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV2921-4M&lang=en 

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5/30/2026