Eaton NOS-90 Fuse - 10 kAIC at 600 Vac, Class K5
Part Number: NOS-90
Quick Summary
The Eaton NOS-90 fuse provides general-purpose protection for industrial control panels and branch circuits up to 90 A. In fast-paced plants, wrong fuse selection can trigger downtime and costly replacements. This NOS fuse carries CE marking and aligns with Bussmann Class K5 specifications for reliable protection in 600 V systems. Its blade-end connections and compact form factor simplify panel wiring, while the 7.9 in length and 1.34 in width fit standard holders. By balancing robust interruption with general-purpose utility, it supports predictable safety margins and streamlined maintenance in modern electrical drives and panels.
Product Information
Extended Description
NOS-90 Eaton: Eaton Bussmann Series Class K5 fuse, NOS, general purpose, non-current-limiting fuses, 90 A, one-time fuse, interrupting rating of 10 kA at 600 Vac
Product Name
Eaton Bussmann series NOS fuse
Catalog Number
NOS-90
UPC
051712310901
Product Length/Depth
7.9 in
Product Height
1.34 in
Product Width
1.34 in
Product Weight
0.55 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
90 A
Interrupt rating
10 kAIC at 600 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class H Class K5
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Quantity
5
Special features
Non current limiting
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Class H (K) Fuses Data Sheet no. 1030
Feature: 90 A amperage rating combined with a 10 kAIC interrupt rating at 600 Vac provides fast, reliable fault clearing for common industrial loads. Business Impact: Protects equipment and minimizes damage during short-circuit events, supporting higher line uptime. Application: Suitable for general-purpose protection in 600 V control panels and branch circuits up to 90 A.Feature: Class K5 non-current-limiting design. Business Impact: Predictable fuse behavior reduces nuisance trips in conventional loads where fast-clearing isn't essential. Application: Best for typical general-purpose protection in industrial equipment.Feature: Blade-end x blade-end connections with a compact 7.9 in length and 1.34 in width. Business Impact: Enables easy drop-in replacement in standard fuse holders, shortening retrofit times and reducing installation risk. Application: Fits Bussmann/Eaton blade-end holders across many panel assemblies.Feature: Packaging type Standard; Quantity per package is 5. Business Impact: Simplifies stocking, inventory planning, and maintenance scheduling. Application: Ideal for maintenance kits and distributor stock for industrial facilities.Feature: CE marked with Bussmann Series Class K5 alignment. Business Impact: Facilitates regulatory compliance and consistent performance across European and global installations. Application: Suitable for regulated manufacturing environments and multi-site deployments.
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FAQs
Power down the equipment, remove the existing fuse, and align the blade-end terminals with the blade-end holder. Insert firmly until seated, ensure the enclosure clearance is within the 7.9 in length and 1.34 in width envelope, and re-close the panel. Verify 600 V system rating before energizing.
The NOS-90 is rated for 90 A, with an interrupt rating of 10 kAIC at 600 Vac and a voltage rating of 600 V. It is a non-current-limiting Class K5 fuse, designed for general-purpose protection in 600 V systems.
Yes. NOS-90 uses blade-end x blade-end connections and a compact form factor (7.9 in × 1.34 in × 1.34 in) that fits most common Bussmann/Eaton blade-end holders used in industrial control panels.
NOS-90 is ideal for general-purpose protection in industrial control panels, machinery, and branch circuits up to 90 A across 600 V systems. Its non-current-limiting design and robust interrupt rating make it suitable where standard protection and reliability are priorities.
NOS-90 is CE marked, aligning with European safety standards. For further compliance verification, Eaton provides a RoHS tool in its compliance resources, and the fuse line adheres to Bussmann Class K5 specifications for consistent performance.