# Circuit Breaker, MCB, 5SL4, 1P, 10 kA, 400 V, 8 A
**URL**: https://novapart.co/products/5SL4108-8/circuit-breaker-mcb-5sl4-1p-10-ka-400-v-8-a
**SKU**: 5SL4108-8
**Manufacturer**: SIEMENS
**Price**: €35.1400
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Product Range | SENTRON Series |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3475020/)
**5SL4108-8**
**Data sheet**
||Miniature circuit breaker 230/400 V 10kA, 1-pole, D, 8A|
|---|---|
|**Model**
~~|~~||
|**product brand name**
~~|~~|SENTRON
~~|~~|
|**product designation**|Miniature circuit breaker|
|**General technical data**
~~|~~||
|**number ofpoles**
~~|~~|1
~~|~~|
|**design ofpole**|1P|
|**tripping characteristic class**|D|
|**mechanical service life(operating cycles) typical**
~~Oe~~|10 000
~~Oe~~|
|**overvoltage category**
~~Oe~~|3
~~Oe~~|
|**degree of pollution**
~~Oe~~|2
~~Oe~~|
|**Voltage**||
|**type of voltage of the operating voltage**|AC|
|**type of voltage**|Use only in alternating current or direct current circuits. Mixed use is not
permitted.|
|**insulation voltage (Ui)**||
|● with single-phase operation at AC rated value|250 V|
|● with multi-phase operation at AC rated value|440 V|
|||
|**● operational current**||
|— at 30 °C rated value|8 A|
|**— at 40 °C rated value**|7.39 A|
|— at 55 °C rated value|6.37 A|
|**● operational current at AC rated value**|8 A|
|**Supply voltage**
~~|~~||
|supplyvoltage at AC
~~|~~|400 V
~~|~~|
|**value range of the supply voltage frequency**|50/60 Hz|
|**operating voltage**||
|● with multi-phase operation at AC maximum|440 V|
|● at DC rated value maximum|62.5 V|
|●|The operational voltage 62,5V DC/pole takes into account a battery charging
voltage with peak value of 72V|
|**Protection class**
~~|~~||
|**protection class IP**
~~|~~|IP20, with connected conductors
~~|~~|
|**Breaking Capacity**
~~|~~||
|**switching capacity current**
~~|~~|~~|~~|
|● accordingto EN 60898 rated value|10 kA|
|● accordingto IEC 60947-2 rated value|10 kA|
|**Dissipation**
~~|~~||
|power loss [W] for rated value of the current at AC in hot
operatingstateperpole
~~|~~
~~a~~|0.8 W
~~|~~
~~a~~|
|**suitability for operation**
~~a~~|Residential buildings/infrastructure
~~a~~|
|**Product details**||
|**product feature touchprotection**|Yes|
|product component neutral conductor switching|No|
|**product feature halogen-free**|Yes|
|**product feature sealable**
~~Os~~|Yes
~~Os~~|
|**product feature silicon-free**
~~Os~~|Yes
~~Os~~|
|**product extension installable supplementary devices**
~~Os~~|Yes
~~Os~~|
|**Connections**||
|**connectable conductor cross-section solid**||
5SL41088 Page 1/5
Subject to change without notice © Copyright Siemens
5/30/2026
|● minimum|0.75 mm²|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**
**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**
~~er~~|||
|**height**
~~er~~|90 mm
~~er~~||
|**width**|18 mm||
|**depth**|76 mm||
|**installation depth**|70 mm||
|**number of modular width units**|1||
|**mounting position**
~~Oo~~|any
~~Oo~~||
|**Net Weight**
~~Oo~~|158g
~~Oo~~||
|**Environmental conditions**|||
|**ambient temperature during operation**|||
|● minimum|-25 °C||
|● maximum|55 °C||
|**ambient temperature during storage**|||
|● minimum|-40 °C||
|● maximum|75 °C||
|**Approvals Certificates**
~~ee~~|||
|**Environment**
~~ee~~||**General Product Approval**
~~ee~~|
~~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/lowvoltage/catalogs **Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5SL4108-8 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SL4108-8 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SL4108-8
5SL41088 Page 2/5
Subject to change without notice © Copyright Siemens
5/30/2026
## **CAx-Online-Generator**
https://www.siemens.com/cax **Tender specifications** https://www.siemens.com/specifications
## **Characteristic curves**
https://curves.simaris.siemens.com/curves/ 18 6,2 68,3
5SL41088 Page 3/5
Subject to change without notice © Copyright Siemens
5/30/2026
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5SL41088 Page 4/5
Subject to change without notice © Copyright Siemens
5/30/2026
5SL41088 Page 5/5
Subject to change without notice © Copyright Siemens
5/30/2026
## Links
- [View this product on Novapart](https://novapart.co/products/5SL4108-8/circuit-breaker-mcb-5sl4-1p-10-ka-400-v-8-a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/5sl4108-8/rcbo-rcd-gfci-afdd-circuit-breakers/dp/3475020)
---
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