# Fuse Base, 1P, 1250 A, 690 VAC/600 VDC, Fixed Mount, with Swivel Mechanism

![Product image](https://novapart.co/image/farnell:3466285/)

**URL**: https://novapart.co/products/3NH7520/fuse-base-1p-1250-a-690-vac-600-vdc-fixed-mount
**SKU**: 3NH7520
**Manufacturer**: SIEMENS
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuse Holders
**Price**: €332.5100
**Stock**: 10+

## Specifications

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

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3466285/)

**3NH7520** 

**Data sheet** 

LV HRC fuse base Sz. 4A, 1-pole 1250 A, 690 V with flat terminal 

|a<br>r<br>m<br>oe|a<br>r<br>m<br>oe|LV HRC fuse base Sz. 4A, 1-pole 1250 A, 690 V with flat terminal|LV HRC fuse base Sz. 4A, 1-pole 1250 A, 690 V with flat terminal|
|---|---|---|---|
|**Model**<br>~~a~~||||
|**product brand name**<br>~~a~~||SENTRON<br>~~a~~||
|**product designation**||LV HRC fuse base||
|**design of theproduct**||LV HRC fuse bases with swivel mechanism||
|**design of the thread of the connection screw**||M16||
|**General technical data**<br>~~eee~~||||
|**number ofpoles**<br>~~eee~~||1<br>~~eee~~||
|**size of fuse system according to EN 60269-1**||NH4a||
|**Supply voltage**<br>~~Se~~||||
|**supply voltage**<br>~~Se~~||~~Se~~||
|● at AC||690 V||
|● at DC||600 V||
|**Product details**<br>~~Oe~~||||
|**product component swivel-in mechanism**<br>~~Oe~~||Yes<br>~~Oe~~||
|**maximum short-circuit current breaking capacity (Icu)**||||
|● at AC rated value||120 kA||
|● at DC rated value||25 kA||
|**Connections**<br>~~eee~~||||
|**connectable conductor cross-section on box terminal**<br>~~eee~~||~~eee~~||
|● minimum||2.5 mm²||
|● maximum||50 mm²||
|tighteningtorque with screw-type terminals maximum||65 N·m||
|**type of electrical connection**||With swivel device||
|● for main current circuit||flat connector||
|**Mechanical Design**<br>~~eee~~||||
|**height**<br>~~eee~~||419 mm<br>~~eee~~||
|**width**||116 mm||
|**depth**||217.5 mm||
|**fastening method**||fixed mounting||
|fasteningmethod bus-mounting||No||
|**Net Weight**||5.168 kg||
|**Approvals Certificates**<br>~~PO~~||||
|**Environment**<br>~~PO~~|**General Product Ap-**<br>**proval**<br>~~PO~~||**other**<br>~~PO~~|



Subject to change without notice © Copyright Siemens 

3NH7520 Page 1/3 

6/2/2026 

~~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=3NH7520 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3NH7520 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3NH7520 

**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> 

**last modified:** 

8/8/2025 

Subject to change without notice © Copyright Siemens 

3NH7520 Page 2/3 

6/2/2026 

Subject to change without notice © Copyright Siemens 

3NH7520 Page 3/3 

6/2/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/3NH7520/fuse-base-1p-1250-a-690-vac-600-vdc-fixed-mount)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3nh7520/fuseholders/dp/3466285)
---

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