# Circuit Breaker, MCB, 5SY8, 1P+N, 25 kA, 230 V, 20 A

![Product image](https://novapart.co/image/farnell:3477144/)

**URL**: https://novapart.co/products/5SY8520-8/circuit-breaker-mcb-5sy8-1pn-25-ka-230-v-20-a
**SKU**: 5SY8520-8
**Manufacturer**: SIEMENS
**Price**: €93.7300
**Stock**: 10+

## Specifications

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

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3477144/)

**5SY8520-8** 

## **Data sheet** 

||Miniature circuit breaker 230 V D=70 mm 25 kA according to EN 60947-2, 1P+N,<br>D20|
|---|---|
|**Model**<br>~~|~~||
|**product brand name**<br>~~|~~|SENTRON<br>~~|~~|
|**product designation**|Miniature circuit breaker|
|**General technical data**<br>~~|~~||
|**number ofpoles**<br>~~|~~|2<br>~~|~~|
|**design ofpole**|1P+N|
|**tripping characteristic class**|D|
|**mechanical service life(operating cycles) typical**<br>~~Oc~~|10 000|
|**overvoltage category**<br>~~Oc~~|3|
|**degree of pollution**<br>~~Oc~~|3|
|**Voltage**||
|**type of voltage of the operating voltage**|AC|
|**insulation voltage (Ui)**||
|● with single-phase operation at AC rated value|250 V|
|**supply voltage with single-phase operation at AC rated**<br>**value**|230 V|
|||
|**● operational current**||
|— at 50 °C rated value|19.38 A|
|— at 55 °C rated value|18.74 A|
|**● operational current at AC rated value**|20 A|
|**Supply voltage**<br>~~|~~||
|**supply voltage**<br>~~|~~|~~|~~|
|● at AC|230 V|
|● at DC rated value<br>~~Oc~~|60 V<br>~~Oc~~|
|**value range of the supply voltage frequency**<br>~~Oc~~|50/60 Hz<br>~~Oc~~|
|operatingvoltage at DC rated value maximum<br>~~Oc~~|72 V<br>~~Oc~~|
|**Protection class**||
|**protection class IP**|IP20, with connected conductors|
|**Breaking Capacity**<br>~~|~~||
|**switching capacity current**<br>~~|~~|~~|~~|
|● at DC accordingto IEC 60947-2 rated value|15 kA|
|● accordingto IEC 60947-2 rated value|30 kA|
|**Dissipation**<br>~~|~~||
|power loss [W] for rated value of the current at AC in hot<br>operatingstateperpole<br>~~|~~<br>~~Oo~~|1.6 W<br>~~|~~<br>~~Oo~~|
|**suitability for operation**<br>~~Oo~~|Infrastructure / Industry<br>~~Oo~~|
|**Product details**||
|**product feature touchprotection**|Yes|
|**product component**||
|● combined terminal top|Yes|
|● combined terminal bottom|Yes|
|● neutral conductor switching|Yes|
|**product feature properties for main switches in accordance**<br>**with EN 60204-1**|Yes|
|**product feature halogen-free**|Yes|
|**product feature sealable**<br>~~Oc~~|Yes<br>~~Oc~~|
|**product feature silicon-free**<br>~~Oc~~|Yes<br>~~Oc~~|
|**product extension installable supplementary devices**<br>~~Oc~~|Yes<br>~~Oc~~|
|**Product function**||



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|**set values setting current(Ii) for I-tripping**|14|14|
|---|---|---|
|**reference value setting current(Ii) for I-tripping**<br>~~re~~|x In<br>~~re~~||
|**Short circuit**|||
|**short-circuit current breaking capacity (Icn)**|||
|● at AC accordingto UL 1077 and CSA C22.2 No.235|5 kA||
|**Connections**<br>~~a~~|||
|**connectable conductor cross-section solid**<br>~~a~~|~~a~~||
|● minimum|0.75 mm²||
|● maximum|35 mm²||
|**connectable conductor cross-section stranded**|||
|● minimum|0.75 mm²||
|● maximum|35 mm²||
|**connectable conductor cross-section finely stranded with**<br>**core endprocessing**|||
|● minimum|0.75 mm²||
|● maximum|25 mm²||
|**AWG number as coded connectable conductor cross**<br>**section**|||
|● minimum|18||
|● maximum|4||
|**tightening torque[lbf·in] with screw-type terminals**|||
|● minimum|22 lbf·in||
|● maximum|31 lbf·in||
|**tightening torque with screw-type terminals**|||
|● minimum|2.5 N·m||
|● maximum<br>~~re~~|3.5 N·m<br>~~re~~||
|**position of power supply cord**<br>~~re~~|Any<br>~~re~~||
|**Mechanical Design**|||
|**height**|90 mm||
|**width**|36 mm||
|**depth**|76 mm||
|**installation depth**|70 mm||
|**number of modular width units**|2||
|**fastening method**|DIN rail||
|**mounting position**<br>~~re~~|any<br>~~re~~||
|**Net Weight**<br>~~re~~|313g<br>~~re~~||
|**Environmental conditions**|||
|**influence of the surrounding temperature**|max. 95% RH upto 55°C||
|**standard**|IEC / EN 60947-2 / UL1077||
|**vibration resistance according to IEC 60068-2-6**|±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz||
|**ambient temperature during operation**|||
|● minimum|-25 °C||
|● maximum|55 °C||
|**ambient temperature during storage**|||
|● minimum|-40 °C||
|● maximum|75 °C||
|**number of test cycles for environmental testing according**<br>**to IEC 60068-2-30**|6||
|**Approvals Certificates**<br>~~ee~~|||
|**Environment**<br>~~ee~~||**General Product Approval**<br>~~ee~~|



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> Confirmation ~~—~~ ¢¢ UK [Fxaa) ~~—~~ Confirmation 

~~P~~ **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=5SY8520-8 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SY8520-8 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SY8520-8 **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> 

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## Links

- [View this product on Novapart](https://novapart.co/products/5SY8520-8/circuit-breaker-mcb-5sy8-1pn-25-ka-230-v-20-a)
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- [Supplier page](https://es.farnell.com/siemens/5sy8520-8/rcbo-rcd-gfci-afdd-circuit-breakers/dp/3477144)
---

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