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5SL4440-6
Circuit Breaker, MCB, 5SL4, 4P, 10 kA, 400 V, 40 A
⚠️ 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:
- Product Range: SENTRON Series
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 163.28 € |
| Current stock | 10+ |
| Lead time | 30 days |
**5SL4440-6** **Data sheet** Miniature circuit breaker 400 V 10kA, 4-pole, B, 40 A |Miniature circuit breaker 400 V 10kA, 4-pole, B, 40 A<br>**Model**<br>**product brand name**<br>SENTRON<br>**product designation**<br>Miniature circuit breaker<br>**General technical data**<br>**number ofpoles**<br>4<br>**design ofpole**<br>4P<br>**tripping characteristic class**<br>B<br>**mechanical service life(operating cycles) typical**<br>10 000<br>**overvoltage category**<br>3<br>**degree of pollution**<br>2<br>**Voltage**<br>**type of voltage of the operating voltage**<br>AC<br>**type of voltage**<br>Use only in alternating current or direct current circuits. Mixed use is not<br>permitted.<br>**insulation voltage (Ui)**<br>● with multi-phase operation at AC rated value<br>440 V<br>**● operational current**<br>— at 30 °C rated value<br>40 A<br>**— at 40 °C rated value**<br>37.89 A<br>— at 55 °C rated value<br>34.47 A<br>**● operational current at AC rated value**<br>40 A<br>**Supply voltage**<br>supplyvoltage at AC<br>400 V<br>**value range of the supply voltage frequency**<br>50/60 Hz<br>**operating voltage**<br>● with multi-phase operation at AC maximum<br>440 V<br>● at DC rated value maximum<br>62.5 V<br>●<br>The operational voltage 62,5V DC/pole takes into account a battery charging<br>voltage with peak value of 72V<br>**Protection class**<br>**protection class IP**<br>IP20, with connected conductors<br>**Breaking Capacity**<br>**switching capacity current**<br>● accordingto EN 60898 rated value<br>10 kA<br>● accordingto IEC 60947-2 rated value<br>10 kA<br>**energy limitation class**<br>3<br>**Dissipation**<br>power loss [W] for rated value of the current at AC in hot<br>operatingstateperpole<br>3.4 W<br>©, %-@-¢@<br>~~i~~<br>~~es~~<br>~~es~~<br>~~es~~<br>~~Se~~<br>~~|!~~<br>~~ee~~|Miniature circuit breaker 400 V 10kA, 4-pole, B, 40 A|| |---|---|---| ||3.4 W<br>~~ee~~|| 5SL44406 Page 1/5 Subject to change without notice © Copyright Siemens 6/4/2026 |**suitability for operation**<br>~~BS~~|**suitability for operation**<br>~~BS~~|Residential buildings/infrastructure| |---|---|---| |**Product details**||| |**product feature touchprotection**||Yes| |product component neutral conductor switching||No| |**product feature halogen-free**<br>~~$§§—_§_~~||Yes<br>~~—_§_~~| |**product feature sealable**<br>~~$§§—_§_~~||Yes<br>~~—_§_~~| |**product feature silicon-free**<br>~~$§§—_§_~~||Yes<br>~~—_§_~~| |**product extension installable supplementary devices**<br>~~$§§ —_§_~~||Yes<br>~~—_§_~~| |**Connections**||| |**connectable conductor cross-section solid**||| |● minimum||0.75 mm²| |● maximum||25 mm²| |**connectable conductor cross-section stranded**||| |● minimum||0.75 mm²| |● maximum||25 mm²| |**connectable conductor cross-section finely stranded with**<br>**core endprocessing**||| |● minimum||0.75 mm²| |● maximum||25 mm²| |**tightening torque with screw-type terminals**||| |● minimum||2.5 N·m| |● maximum||3 N·m| |**Mechanical Design**<br>~~nn~~||| |**height**<br>~~nn~~||90 mm<br>~~nn~~| |**width**||72 mm| |**depth**||76 mm| |**installation depth**||70 mm| |**number of modular width units**||4| |**mounting position**||any| |**Net Weight**||625g| |**Environmental conditions**||| |**ambient temperature during operation**||| |● minimum||-25 °C| |● maximum||55 °C| |**ambient temperature during storage**||| |● minimum||-40 °C| |● maximum||75 °C| |**Approvals Certificates**<br>~~a~~||| |**Environment**<br>~~a~~|**General Product Approval**<br>~~a~~|| ## **other** 5SL44406 Page 2/5 Subject to change without notice © Copyright Siemens 6/4/2026 ## **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=5SL4440-6 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SL4440-6 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SL4440-6 **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> **==> picture [439 x 315] intentionally omitted <==** **----- Start of picture text -----**<br> 72 6,2 68,3<br>190,<br>**----- End of picture text -----**<br> 5SL44406 Page 3/5 Subject to change without notice © Copyright Siemens 6/4/2026 **==> picture [388 x 364] intentionally omitted <==** **----- Start of picture text -----**<br> -F<br>last modified: 10/10/2025<br>1 3 5 7<br>2 4 6 8<br>**----- End of picture text -----**<br> 5SL44406 Page 4/5 Subject to change without notice © Copyright Siemens 6/4/2026 5SL44406 Page 5/5 Subject to change without notice © Copyright Siemens 6/4/2026
Updated at June 7, 2026
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