3RV1912-1CV0

**3RV1912-1CV0** 

**Data sheet** 

undervoltage release 400 V AC, 50 Hz with leading auxiliary switch 2 NO, for circuit breaker 3RV1011 

|&<br>“1,|undervoltage release 400 V AC, 50 Hz with leading auxiliary switch 2 NO, for circuit<br>breaker 3RV1011|
|---|---|
|**product brand name**|SIRIUS|
|**product category**|Auxiliaryrelease|
|**product designation**|undervoltage release|
|**design of theproduct**<br>~~OO~~|with 2 auxiliarycontacts<br>~~OO~~|
|**product type designation**<br>~~OO~~|3RV19<br>~~OO~~|
|**suitability for use**<br>~~OO~~|motor circuit breaker<br>~~OO~~|
|**General technical data**||
|**certificate of suitability**|CE / UL / CSA|
|**size of the circuit-breaker**|S00, S0, S2, S3|
|**closing activepower at AC maximum**|13 W|
|**activepower at AC in operation maximum**|2.4 W|
|**apparentpower at AC in operation maximum**|7.2 VA|
|**insulation voltage**||
|**● rated value**|690 V|
|● with degree ofpollution 3 at AC rated value|690 V|
|**degree ofpollution**|3|
|protection class IP on the front accordingto IEC 60529|IP20|
|break time maximum|20 ms|
|**reference code according to DIN 40719 extended according**<br>**to IEC 204-2 according to IEC 750**|F|
|**reference code according to EN 61346-2**|F|
|**Substance Prohibitance(day/month/year)**|07/01/2006|
|**Net Weight**|0.142 kg|
|**type of voltage of the control supply voltage**|AC|
|**control supply voltage 1 at AC**||
|● at 50 Hz rated value|400 V|
|**control supply voltage frequency 1**|50 ... 60 Hz|
|number of NC contacts for auxiliary contacts instantaneous<br>contact|0|
|number of NO contacts for auxiliarycontacts||
|● instantaneous contact|0|
|● leadingcontact|2|
|number of CO contacts of auxiliary contacts instantaneous<br>contact|0|
|**Ambient conditions**<br>~~a~~||
|**ambient temperature**<br>~~a~~|~~a~~|
|● duringoperation|-20 ... +60 °C|
|● duringstorage<br>~~a~~|-50 ... +80 °C<br>~~a~~|
|Electrical Safety<br>~~a~~||
|**protection class IP on the front according to IEC 60529**<br>~~a~~|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||
|---|---|---|---|
|**Short-circuit protection**||||
|**design of short-circuit protection**|fuse|||
|**Installation/ mounting/ dimensions**<br>~~re~~||||
|**fastening method**|snap-on mounting|||
|**height**|90 mm|||
|**width**|19 mm|||
|**depth**<br>68 mm<br>**Connections/ Terminals**<br>~~a~~||||
|type of electrical connection for auxiliaryand control circuit|screw-type terminals|||
|**Approvals Certificates**<br>~~a~~||||
|**Environment**<br>**General Product Approval**|||**Test Certificates**|
|Environmental Con-|||Type Test Certific-|
|firmations|||ates/Test Report|
|**Maritime application**||**other**||
|||Confirmation|Miscellaneous|
|~~=~~<br>a2<br>=|~~=~~<br>3|~~=~~|~~=~~|
|**other**||||
|Confirmation||||



**Further information** ~~ee~~ **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=3RV1912-1CV0 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV1912-1CV0 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RV1912-1CV0 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV1912-1CV0&lang=en 

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Subject to change without notice © Copyright Siemens 

5/29/2026 

**last modified:** 

4/2/2025 

3RV19121CV0 Page 3/3 

Subject to change without notice © Copyright Siemens 

5/29/2026