3RV2021-1GA25

**3RV2021-1GA25** 

**Data sheet** 

circuit breaker frame size S0 for motor protection, Class 10 thermal release 4.5...6.3 A short-circuit release 82 A spring-loaded terminal standard switching capacity with transverse auxiliary switch 1 NO+1 NC 

|**product brand name**|SIRIUS|
|---|---|
|**product designation**|Circuit breaker|
|**design of theproduct**|For motorprotection|
|**product type designation**|3RV2|
|**General technical data**||
|**Product equipment of circuit breaker for motor protection**|Yes|
|**complete unit withprotection device**||
|**size of the circuit-breaker**|S0|
|**size of contactor can be combined company-specific**|S00, S0|
|product function disconnector functionality|Yes|
|product extension auxiliaryswitch|Yes|
|**power loss[W] for rated value of the current**||
|● at AC in hot operatingstate|7.25 W|
|● at AC in hot operatingstateperpole|2.4 W|
|**type of calculation ofpower loss current-dependent**|quadratic|
|insulation voltage with degree ofpollution 3 at AC rated value|690 V|
|**surge voltage resistance rated value**|6 kV|
|**maximumpermissible voltage forprotective separation**||
|● in networks with ungrounded star point between main and|400 V|
|auxiliarycircuit||
|● in networks with grounded star point between main and|400 V|
|auxiliarycircuit||
|**protection class IP**||
|● on the front accordingto IEC 60529|IP20|
|● on the front|IP20|
|● of the terminal|IP20|
|**shock resistance according to IEC 60068-2-27**|25g/ 11 ms|
|**mechanical service life(operating cycles)**||
|● of the main contacts typical|100 000|
|● of auxiliarycontacts typical|100 000|
|electrical endurance(operatingcycles)typical|100 000|
|**reference code according to IEC 81346-2**|Q|
|**continuous current rated value**|6.3 A|
|**Substance Prohibitance(day/month/year)**|10/01/2009|
|**SVHC substance name**|Lead CAS-No. 7439-92-1|
|**Net Weight**|427g|
|**Ambient conditions**||
|installation altitude at height above sea level maximum|2 000 m|
|**ambient temperature**||
|● duringoperation|-20 ... +60 °C|
|● duringstorage|-50 ... +80 °C|
|● duringtransport|-50 ... +80 °C|
|**temperature compensation**|-20 ... +60 °C|
|relative humidityduringoperation|10 ... 95 %|
|**Main circuit**||
|**number ofpoles for main current circuit**|3|
|**adjustable current response value current of the current-**|4.5 ... 6.3 A|
|**dependent overload release**||
|**type of voltage for main current circuit**|AC|



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||**operating voltage**|||
|---|---|---|---|
||● rated value|690 V||
||● rated value|20 ... 690 V||
||● at AC-3 rated value maximum|690 V||
||● at AC-3e rated value maximum|690 V||
||**operating frequency rated value**|50 ... 60 Hz||
||**operational current rated value**|6.3 A||
||**operational current**|||
||● at AC-3 at 400 V rated value|6.3 A||
||● at AC-3e at 400 V rated value|6.3 A||
||**operating power**|||
||● at AC-3|||
||— at 230 V rated value|1.5 kW||
||— at 400 V rated value|2.2 kW||
||— at 500 V rated value|3 kW||
||— at 690 V rated value|4 kW||
||● at AC-3e|||
||— at 230 V rated value|1.5 kW||
||— at 400 V rated value|2.2 kW||
||— at 500 V rated value|3 kW||
||— at 690 V rated value|4 kW||
||**operating frequency**|||
||● at AC-3 maximum|15 1/h||
||● at AC-3e maximum|15 1/h||
||**Auxiliary circuit**|||
||**design of the auxiliary switch**|transverse||
||**type of voltage for auxiliary and control circuit**|AC/DC||
||**number of NC contacts for auxiliary contacts**|1||
||**number of NO contacts for auxiliary contacts**|1||
||number of CO contacts for auxiliarycontacts|0||
||**operational current of auxiliary contacts at AC-15**|||
||● at 24 V|2 A||
||● at 120 V|0.5 A||
||● at 125 V|0.5 A||
||● at 230 V|0.5 A||
||**operational current of auxiliary contacts at DC-13**|||
||● at 24 V|1 A||
||● at 60 V|0.15 A||
||**Protective and monitoring functions**|||
||**product function**|||
||●ground fault detection|No||
||●phase failure detection|Yes||
||**trip class**|CLASS 10||
||**design of the overload release**|thermal||
||**protection function thermal overloadprotection(ANSI 49)**|Yes||
||**maximum short-circuit current breaking capacity (Icu)**|||
||● at AC at 240 V rated value|100 kA||
||● at AC at 400 V rated value|100 kA||
||● at AC at 500 V rated value|100 kA||
||● at AC at 690 V rated value|6 kA||
||**operating short-circuit current breaking capacity (Ics) at AC**|||
||● at 240 V rated value|100 kA||
||● at 400 V rated value|100 kA||
||● at 500 V rated value|100 kA||
||● at 690 V rated value|4 kA||
||response value current of instantaneous short-circuit trip unit|82 A||
||**UL/CSA ratings**|||
||**full-load current(FLA) for 3-phase AC motor**|||
||● at 480 V rated value|6.3 A||



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||● at 600 V rated value|6.3 A||
|---|---|---|---|
||**yielded mechanicalperformance[hp]**|||
||● for single-phase AC motor|||
||— at 110/120 V rated value|0.25 hp||
||— at 230 V rated value|0.5 hp||
||● for 3-phase AC motor|||
||— at 200/208 V rated value|1 hp||
||— at 220/230 V rated value|1.5 hp||
||— at 460/480 V rated value|3 hp||
||— at 575/600 V rated value|5 hp||
||**contact rating of auxiliary contacts according to UL**|C300 / R300||
||**UL File Number(CCN)**|E47705(NLRV, NLRV7), E156943(NKJH, NKJH7)||
||**Short-circuit protection**|||
||**product function short circuitprotection**|Yes||
||**design of the short-circuit trip**|magnetic||
||**design of the fuse link**|||
||● for short-circuit protection of the auxiliary switch required|Fuse gL/gG: 10 A, miniature circuit breaker C 6 A (short-circuit current Ik < 400<br>A)||
||certificate of suitabilityaccordingto ATEX directive 2014/34/EU|DMT 02 ATEX F 001||
||**type of protection according to ATEX directive 2014/34/EU**|Ex II(2)GD||
||**Installation/ mounting/ dimensions**|||
||**mounting position**|any||
||**fastening method**|screw and snap-on mountingonto 35 mm DIN rail accordingto DIN EN 60715||
||**Mounting method of circuit breaker for Transformer**<br>**protection, Generator protection and system protection**<br>**optional standard bar mounting**|Yes||
||**height**|119 mm||
||**width**|45 mm||
||**depth**|97 mm||
||**required spacing**|||
||● with side-by-side mounting|||
||— forwards|0 mm||
||— backwards|0 mm||
||— upwards|50 mm||
||— downwards|50 mm||
||— at the side|0 mm||
||● forgroundedparts|||
||— forwards|0 mm||
||— backwards|0 mm||
||— upwards|50 mm||
||— at the side|30 mm||
||— downwards|50 mm||
||● for liveparts|||
||— forwards|0 mm||
||— backwards|0 mm||
||— upwards|50 mm||
||— downwards|50 mm||
||— at the side|30 mm||
||● forgroundedparts at 400 V|||
||— downwards|30 mm||
||— upwards|30 mm||
||— at the side|9 mm||
||● for liveparts at 400 V|||
||— downwards|30 mm||
||— upwards|30 mm||
||— at the side|9 mm||
||● forgroundedparts at 500 V|||
||— downwards|30 mm||
||— upwards|30 mm||
||— at the side|9 mm||



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|● for liveparts at 500 V||
|---|---|
|— downwards|30 mm|
|— upwards|30 mm|
|— at the side|9 mm|
|● forgroundedparts at 690 V||
|— downwards|50 mm|
|— upwards|50 mm|
|— backwards|0 mm|
|— at the side|30 mm|
|— forwards|0 mm|
|● for liveparts at 690 V||
|— downwards|50 mm|
|— upwards|50 mm|
|— backwards|0 mm|
|— at the side|30 mm|
|— forwards|0 mm|
|**Connections/ Terminals**||
|**product component removable terminal for auxiliary and**<br>**control circuit**|No|
|**type of electrical connection**||
|● for main current circuit|spring-loaded terminals|
|● for auxiliaryand control circuit|spring-loaded terminals|
|**arrangement of electrical connectors for main current**<br>**circuit**|Top and bottom|
|**type of connectable conductor cross-sections**||
|● for main contacts||
|— solid or stranded|2x(1 ... 10 mm²)|
|— finelystranded with core endprocessing|2x(1 ... 6 mm²)|
|— finelystranded without core endprocessing|2x(1 ... 6 mm²)|
|● for AWG cables for main contacts|2x(18 ... 8)|
|**connectable conductor cross-section for main contacts**||
|● solid or stranded|1 ... 10 mm²|
|● finelystranded with core endprocessing|1 ... 6 mm²|
|● finelystranded without core endprocessing|1 ... 6 mm²|
|**connectable conductor cross-section for auxiliary contacts**||
|● solid or stranded|0.5 ... 2.5 mm²|
|● finelystranded with core endprocessing|0.5 ... 1.5 mm²|
|● finelystranded without core endprocessing|0.5 ... 1.5 mm²|
|**type of connectable conductor cross-sections**||
|● for auxiliarycontacts||
|— solid or stranded|2x(0.5 ... 2.5 mm²)|
|— finelystranded with core endprocessing|2x(0.5 ... 1.5 mm²)|
|— finelystranded without core endprocessing|2x(0.5 ... 1.5 mm²)|
|● for AWG cables for auxiliarycontacts|2x(20 ... 14)|
|**AWG number as coded connectable conductor cross**<br>**section for main contacts**|18 ... 8|
|**AWG number as coded connectable conductor cross**<br>**section for auxiliary contacts**|20 ... 14|
|**design of screwdriver shaft**|Diameter 3 mm|
|**size of the screwdriver tip**|3,0 x 0,5 mm|
|**Safety related data**||
|product function suitable for safetyfunction|Yes|
|**suitability for use**||
|● safety-related switchingon|No|
|● safety-related switchingOFF|Yes|
|**service life maximum**|10 a|
|**test wear-related service life necessary**|Yes|
|**proportion of dangerous failures**||
|● with low demand rate accordingto SN 31920|40 %|
|● with high demand rate according to SN 31920|50 %|



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|||
|---|---|
|B10 value with high demand rate according to SN 31920|5 000|
|failure rate [FIT] with low demand rate according to SN|50 FIT|
|31920|
|ISO 13849|
|a|
|device type according to ISO 13849-1|3|
|overdimensioning according to ISO 13849-2 necessary|Yes|
|IEC 61508|
|a|
|safety device type according to IEC 61508-2|Type A|
|T1 value|
|● for proof test interval or service life according to IEC|10 a|
|61508|
|a|Electrical Safety|
|protection class IP on the front according to IEC 60529|IP20|
|touch protection on the front according to IEC 60529|finger-safe, for vertical contact from the front|
|re|Display|
|display version for switching status|Handle|
|Approvals Certificates|
|Environmental Product Declaration|
|a|
|● global warming potential [CO2 eq] / during manufacturing|2.68 kg|
|● global warming potential [CO2 eq] / during sales|0.143 kg|
|● global warming potential [CO2 eq] / during operation|72.7 kg|
|● global warming potential [CO2 eq] / after end of life|-0.445 kg|
|● global warming potential [CO2 eq] / total|75.078 kg|
|Environment|General Product Approval|

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Environmental Confirmations ~~—-—~~ 

**General Product Approval** 

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||||
|---|---|---|
|For use in hazardous locations|Test Certificates|Maritime application|
|-|-|
|Special Test Certific|Type Test Certific|
|ate|ates/Test Report|
|ren|itas!|
|Maritime application|other|
|Confirmation|Miscellaneous|Confirmation|
|other|Railway|
|Miscellaneous|Confirmation|Special Test Certific-|
|ate|
|QC|PASS|
|ee|i|

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**Further information** ~~ee~~ **Information on the packaging** 

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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=3RV2021-1GA25 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RV2021-1GA25 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RV2021-1GA25&lang=en **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RV2021-1GA25 **Characteristic curves** https://curves.simaris.siemens.com/curves/<mmp_prod_noCOMP="HAUPT"></mmp_prod__no> 

**last modified:** 5/5/2026 

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