Eaton NOS-450 Fuse - Class K5 10kA at 600V CE
Part Number: NOS-450
Quick Summary
The Eaton NOS-450 fuse provides general protection for industrial power circuits. In demanding panels, engineers frequently face nuisance trips and mismatched protection; this NOS fuse helps prevent outages with a robust 450 A rating and a 10 kA interrupt rating at 600 Vac. CE marking confirms European compliance and aligns with Bussmann series Class K5 design expectations for reliable general protection. Built for straightforward replacement and predictable performance, the NOS-450 delivers a sound balance of protection, serviceability, and procurement efficiency in modern electrical protection and circuit control applications.
Product Information
Extended Description
NOS-450 Eaton: Eaton Bussmann Series Class K5 fuse, NOS, general purpose, non-current-limiting fuses, 450 A, one-time fuse, interrupting rating of 10 kA at 600 Vac
Product Name
Eaton Bussmann series NOS fuse
Catalog Number
NOS-450
UPC
051712314503
Product Length/Depth
13.38 in
Product Height
3.13 in
Product Width
3.13 in
Product Weight
4.76 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
450 A
Interrupt rating
10 kAIC at 600 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class K5 Class H
Fuse indicator
Non-indicating
Quantity
1
Special features
Pin-indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Class H (K) Fuses Data Sheet no. 1030
Feature: 450 A amperage rating → Business Impact: Enables reliable protection for high-current feeders and circuits, reducing the risk of equipment damage and unplanned downtime → Application: Industrial power distribution panels and feeders that require robust, non-time-delayed protection. Feature: 10 kA interrupt rating at 600 Vac → Business Impact: Superior fault interruption capability minimizes arc energy and collateral damage during faults → Application: Main feeders and branch circuits in panels where faults can produce high fault currents. Feature: Class K5 Class H designation → Business Impact: Standardized high-performance fuse family provides predictable coordination with upstream protective devices → Application: General protection in switchgear, motor control centers, and control panels. Feature: Non-indicating fuse with pin-indicating stock features → Business Impact: Clear maintenance status cues and straightforward field inspection improve uptime and reduce service time, while still enabling fast identification when needed → Application: Routine maintenance in routine power protection assemblies. Feature: Physical dimensions and weight (13.38 in L × 3.13 in W × 3.13 in H; 4.76 lb) → Business Impact: Familiar form factor facilitates quick replacement and minimal panel modification → Application: Retrofit or upgrade projects where standard NOS fuse form factors are required. Feature: Standard packaging (1 piece) → Business Impact: Simplified stocking, faster reorder cycles, and reduced procurement complexity → Application: Inventory management for electrical protection and circuit control across facilities.
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FAQs
Install NOS-450 into the appropriate Bussmann NOS fuse holder with the correct orientation, ensuring the panel is de-energized and de-racked. Verify the Catalog Number NOS-450, confirm the 450 A rating aligns with the circuit, and replace any adjacent fuses only after re-energizing and testing the circuit. The fuse is a one-time device designed for general protection in power distribution panels.
The NOS-450 provides a 450 A amperage rating with a 10 kA interrupter rating at 600 Vac, and a voltage rating of 600 V. It is a non-current-limiting Class K5 fuse intended for general protection in industrial electrical systems.
Yes. The 450 A, 10 kAIC at 600 Vac ratings are well-suited for general protection in motor control centers and power distribution panels, where predictable fault interruption and straightforward replacement are priorities. Consider coordination with upstream protective devices to ensure selective protection.
The NOS-450 is CE marked, indicating compliance with European safety and performance standards. This supports European installations and aligns with industry expectations for general protection devices in the Bussmann series.
The NOS-450's one-time fuse design and robust interrupt rating help minimize downtime from faults, reducing unplanned outages and maintenance costs. The standard form factor and pin-indicating features (where available) support quicker diagnostics and replacements, contributing to lower lifecycle costs in industrial protection schemes.