# Circuit Breaker, MCB, 5SP3, 1P, 25 kA, 400 V, 35 A

![Product image](https://novapart.co/image/farnell:3475594/)

**URL**: https://novapart.co/products/5SP3735-2KK03/circuit-breaker-mcb-5sp3-1p-25-ka-400-v-35-a
**SKU**: 5SP3735-2KK03
**Manufacturer**: SIEMENS
**Price**: €99.2500
**Stock**: 10+

## Specifications

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

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3475594/)

**5SP3735-2KK03** 

**Data sheet** 

Main miniature circuit breaker (SHU), 1-pole, E35A L3, 230/400 V 

|4<br>a<br>ae<br>Figure similar|Main miniature circuit breaker (SHU), 1-pole, E35A L3, 230/400 V|
|---|---|
|**Model**||
|**product brand name**|SENTRON|
|**product designation**|Miniature circuit breaker|
|**design of theproduct**|Main miniature circuit breaker|
|**design of the locking device**|Lockingslide with lock, additional wire seal, cable ties and Antilux|
|**General technical data**||
|**number ofpoles**|1|
|**design ofpole**|1P|
|**tripping characteristic class**|E|
|**mechanical service life(operating cycles) typical**|20 000|
|**overvoltage category**|4|
|**degree of pollution**|3|
|**Voltage**||
|insulation voltage(Ui)rated value|690 V|
|surge voltage resistance rated value|6 kV|
|**supply voltage with single-phase operation at AC rated**<br>**value**|230 V|
|||
|**● operational current**||
|— at 30 °C rated value|35 A|
|**— at 40 °C rated value**|33.25 A|
|— at 50 °C rated value|31.5 A|
|— at 55 °C rated value|30.625 A|
|**● operational current at AC rated value**|35 A|
|**Supply voltage**||
|supplyvoltage at AC|230 V|
|**operating voltage rated value**||
|● minimum|110 V|
|● maximum|440 V|
|supplyvoltage frequencyrated value|50 Hz|
|**Protection class**||
|**protection class IP**|IP40, with connected conductors|
|**Breaking Capacity**||
|**switching capacity current**||
|● rated value|25 kA|
|● accordingto EN 60898 rated value|25 kA|
|**Dissipation**||
|power loss [W] for rated value of the current at AC in hot|6.9 W|



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|operatingstateperpole<br>~~re~~|operatingstateperpole<br>~~re~~|~~re~~|~~re~~|
|---|---|---|---|
|**suitability for operation**<br>~~re~~||Residential buildings/infrastructure<br>~~re~~||
|**Product details**||||
|**product component**||||
|**● outgoing feeder via spring-loaded terminal**||Yes||
|**● infeed at box terminal**||Yes||
|**product feature properties for main switches in accordance**<br>**with EN 60204-1**<br>~~re~~||Yes<br>~~re~~||
|**product feature sealable**<br>~~re~~||Yes<br>~~re~~||
|**Display and operation**||||
|displayversion for switch position indicator||OFF =green, ON = red||
|**Connections**<br>~~|~~||||
|**connectable conductor cross-section of spring-loaded**<br>**terminal finely stranded with core endprocessing**<br>~~|~~||~~|~~||
|● minimum||2.5 mm²||
|● maximum||16 mm²||
|**connectable conductor cross-section of the box terminal**||||
|● solid minimum||2.5 mm²||
|● solid maximum||50 mm²||
|● stranded minimum||2.5 mm²||
|● stranded maximum<br>~~re~~||50 mm²<br>~~re~~||
|**position of power supply cord**<br>~~re~~||Stipulated byinstallation in the lower section of the meter panel<br>~~re~~||
|**Mechanical Design**||||
|**height**||151.3 mm||
|**depth**||89.5 mm||
|**depth of the enclosure**||76.3 mm||
|**number of modular width units**||1.5||
|**fastening method**<br>~~re~~||Busbar<br>~~re~~||
|fasteningmethod other<br>~~re~~||on 40-mm busbar system in compliance with DIN 43870 Part 2<br>~~re~~||
|**Net Weight**<br>~~re~~||489g<br>~~re~~||
|**Environmental conditions**||||
|**shock resistance**||30g, at least 3 impacts, impact duration 11 ms||
|**vibration resistance according to IEC 60068-2-6**||2g, 20 frequencycycles 5 to 150 to 15 Hz||
|**ambient temperature during operation**||||
|● minimum||-25 °C||
|● maximum||55 °C||
|**ambient temperature during storage**||||
|● minimum||-40 °C||
|● maximum||70 °C||
|**Approvals Certificates**<br>~~ee~~||||
|**Environment**<br>~~ee~~|**General Product Approval**<br>~~ee~~||**other**<br>~~ee~~|



~~ee~~ **Approvals Certificates Environment General Product Approval other** Environmental ConEnvironmental Confirmations firmations 

## **other** 

Confirmation 

~~|~~ **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,…)** 

5SP37352KK03 Page 2/5 

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https://www.siemens.com/lowvoltage/catalogs 

**Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5SP3735-2KK03 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SP3735-2KK03 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SP3735-2KK03 **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> 

~~_|~~ 27 16,5 57 ~~ire~~ 89,5 1 S ~~|~~ 2 

**last modified:** 

7/22/2025 

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Subject to change without notice © Copyright Siemens 

6/4/2026 

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Subject to change without notice © Copyright Siemens 

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## Links

- [View this product on Novapart](https://novapart.co/products/5SP3735-2KK03/circuit-breaker-mcb-5sp3-1p-25-ka-400-v-35-a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/5sp3735-2kk03/rcbo-rcd-gfci-afdd-circuit-breakers/dp/3475594)
---

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