# Circuit Breaker, MCB, 5SP4, 3P, 10 kA, 400 V, 125 A

![Product image](https://novapart.co/image/farnell:3475658/)

**URL**: https://novapart.co/products/5SP4392-7/circuit-breaker-mcb-5sp4-3p-10-ka-400-v-125-a
**SKU**: 5SP4392-7
**Manufacturer**: SIEMENS
**Price**: €421.0100
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Product Range | SENTRON Series |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3475658/)

**5SP4392-7** 

**Data sheet** 

Miniature circuit breaker 400 V 10kA, 3-pole, C, 125 A, D=70 mm 

||Miniature circuit breaker 400 V 10kA, 3-pole, C, 125 A, D=70 mm|
|---|---|
|**Model**<br>~~See~~||
|**product brand name**<br>~~See~~|SENTRON<br>~~See~~|
|**product designation**|Miniature circuit breaker|
|**General technical data**<br>~~a~~||
|**number ofpoles**<br>~~a~~|3<br>~~a~~|
|**design ofpole**|3P|
|**tripping characteristic class**|C|
|**mechanical service life(operating cycles) typical**|10 000|
|**overvoltage category**|3|
|**degree of pollution**|3|
|**Voltage**<br>~~a~~||
|**type of voltage of the operating voltage**<br>~~a~~|AC<br>~~a~~|
|**insulation voltage (Ui)**||
|● at AC rated value|440 V|
|● with multi-phase operation at AC rated value|440 V|
|||
|**● operational current**||
|— at 30 °C rated value|125 A|
|**— at 40 °C rated value**|118.75 A|
|— at 50 °C rated value|111.875 A|
|— at 60 °C rated value|105 A|
|**● operational current at AC rated value**|125 A|
|**Supply voltage**<br>~~a~~||
|supplyvoltage at AC<br>~~a~~|400 V<br>~~a~~|
|**value range of the supply voltage frequency**|50/60 Hz|
|**Protection class**<br>~~a~~||
|**protection class IP**<br>~~a~~|IP20 with connected conductors, IP40 in the area of the handle with distribution<br>cover<br>~~a~~|
|**Breaking Capacity**<br>~~a~~||
|**switching capacity current**<br>~~a~~|~~a~~|
|● accordingto EN 60898 rated value|10 kA|
|**energy limitation class**|3|
|**Dissipation**<br>~~a~~||
|power loss [W] for rated value of the current at AC in hot<br>operatingstateperpole<br>~~a~~|10.9 W<br>~~a~~|
|**suitability for operation**|Infrastructure / Industry|
|**Product details**<br>~~a~~||
|**product feature touch protection**<br>~~a~~|Yes<br>~~a~~|



|**product component**||
|---|---|
|**● tunnel terminals top**|Yes|
|**● tunnel terminals bottom**|Yes|
|**product feature properties for main switches in accordance**|Yes|
|**with EN 60204-1**||
|**product feature halogen-free**|Yes|
|**product feature sealable**|Yes|
|**product feature silicon-free**|Yes|
|**product extension installable supplementary devices**|Yes|



|**product component**|||
|---|---|---|
|**● tunnel terminals top**|Yes||
|**● tunnel terminals bottom**|Yes||
|**product feature properties for main switches in accordance**<br>**with EN 60204-1**|Yes||
|**product feature halogen-free**|Yes||
|**product feature sealable**|Yes||
|**product feature silicon-free**|Yes||
|**product extension installable supplementary devices**|Yes||
|**Connections**<br>~~a~~|||
|**connectable conductor cross-section solid**<br>~~a~~|~~a~~||
|● minimum|25 mm²||
|● maximum|50 mm²||
|**connectable conductor cross-section stranded**|||
|● minimum|25 mm²||
|● maximum|50 mm²||
|**connectable conductor cross-section finely stranded with**<br>**core endprocessing**|||
|● minimum|25 mm²||
|● maximum|35 mm²||
|**AWG number as coded connectable conductor cross**<br>**section**|||
|● minimum|3||
|● maximum|1||
|**tightening torque[lbf·in] with screw-type terminals**|||
|● minimum|22.1 lbf·in||
|● maximum|31 lbf·in||
|**tightening torque with screw-type terminals**|||
|● minimum|2.5 N·m||
|● maximum|3.5 N·m||
|**position of power supply cord**|Any||
|**Mechanical Design**<br>~~a~~|||
|**height**<br>~~a~~|90 mm<br>~~a~~||
|**width**|81 mm||
|**depth**|76 mm||
|**installation depth**|70 mm||
|**number of modular width units**|4.5||
|**fastening method**|DIN rail||
|**mounting position**|any||
|**Net Weight**|789g||
|**Environmental conditions**<br>~~a~~|||
|**influence of the surrounding temperature**<br>~~a~~|Max. 95% rel. humidity<br>~~a~~||
|shock resistance accordingto IEC 60068-2-27|150m/s² at 11ms half-sine||
|**vibration resistance according to IEC 60068-2-6**|50m/s² at 25 to 150Hz and 60m/s² at 35Hz(4sec)||
|**ambient temperature during storage**|||
|● minimum|-40 °C||
|● maximum|75 °C||
|**Approvals Certificates**<br>~~ee~~|||
|**Environment**<br>~~ee~~||**General Product Approval**<br>~~ee~~|



**General Product Approval Maritime application** 

5SP43927 Page 2/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

**Maritime application other Railway Dangerous goods** opBe (Fae) ~~—~~ Confirmation ~~—~~ Miscellaneous ~~—~~ Confirmation ~~——~~ Transport Information ~~a~~ **Further information 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/lowvoltage/catalogs **Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5SP4392-7 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SP4392-7 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SP4392-7 **CAx-Online-Generator** https://www.siemens.com/cax 

**Tender specifications** https://www.siemens.com/specifications **Characteristic curves** https://curves.simaris.siemens.com/curves/<mmp_prod_noCOMP="HAUPT"></mmp_prod__no> 

79,8 6,2 70,5 ~~: JODODO he~~ 

5SP4380-6, 5SP4380-7, 5SP4380-8, 5SP4391-6, 5SP4391-7, 5SP4391-8, 5SP4392-6, 5SP4392-7 

5SP43927 Page 3/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

5SP43927 Page 4/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

**last modified:** 

7/22/2025 

5SP43927 Page 5/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/5SP4392-7/circuit-breaker-mcb-5sp4-3p-10-ka-400-v-125-a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/5sp4392-7/rcbo-rcd-gfci-afdd-circuit-breakers/dp/3475658)
---

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