Image not available
Illustrative purposes only
8GK4557-3KK12
Assembly Kit, Vertical, 250 mm W x 450 mm H, Fuse Switch Disconnector
⚠️ 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: Industrial Switch Accessories
- SVHC: To Be Advised
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 71.28 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**8GK4557-3KK12** **Data sheet** ALPHA 400/630/1250 DIN assembly kit fuse switch disconnector 3NP4370, 1x NH2 for mounting on support plate, H = 450 mm, W = 250 mm H = 450 mm, W = 250 mm |**Model**|||| |---|---|---|---| |**product brand name**||ALPHA|| |**product designation**||Assemblykit for LV HRC fuse switch disconnectors|| |**design of theproduct**||1x 3NP4370, NH2|| |**coverplate version**||with cutout|| |**product component**|||| |**●grounding bus**||No|| |●plastic coverplate||Yes|| |● mountingplate||Yes|| |**Mechanical Design**<br>~~a~~|||| |**height**||450 mm|| |**width**||250 mm|| |**mounting position**||vertical|| |**Net Weight**||2 100g|| |**Approvals Certificates**<br>~~ee~~|||| |**Environment**|**General Product Approval**||**Test Certificates**| |Environmental Con-<br>Environmental Con-||Confirmation|Type Test Certific-| |firmations<br>firmations|||ates/Test Report| |**Test Certificates**<br>**other**|||| |Special Test Certific-<br>ate<br>Confirmation<br>~~a~~|Miscellaneous<br>~~_~~||| |||QC PASS|| |**Further information**<br>~~ee~~|||| |**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=8GK4557-3KK12|||| |**Service&Support (Manuals, Certificates, Characteristics, FAQs,...)**|||| |https://support.industry.siemens.com/cs/ww/en/ps/8GK4557-3KK12|||| |**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)**|||| |https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=8GK4557-3KK12|||| 8GK45573KK12 Page 1/3 Subject to change without notice © Copyright Siemens 6/2/2026 ## **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:** 1/15/2026 8GK45573KK12 Page 2/3 Subject to change without notice © Copyright Siemens 6/2/2026 8GK45573KK12 Page 3/3 Subject to change without notice © Copyright Siemens 6/2/2026
Updated at June 5, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →