Eaton NOS-3 NOS Fuse - 50 kAIC at 600 Vac
Part Number: NOS-3
Quick Summary
Eaton NOS fuse provides reliable protection for general-purpose circuits in industrial control panels. It addresses downtime caused by mismatched amperage and unreliable fusing in critical automation circuits. This NOS-3 is CE marked and belongs to the Bussmann Series Class H family, ensuring regulatory compliance and consistent performance. With a 3 A rating and 50 kAIC interrupt rating at 600 V, it supports compact, robust protection for controls, drives, and machines, while simplifying sourcing and spare-part planning. Its standard 10-pack, ferrule-end connections, and pin-indicating feature help streamline installation and diagnostics for technicians and procurement teams alike.
Product Information
Extended Description
NOS-3 Eaton: Eaton Bussmann Series Class K5 fuse, NOS, general purpose, non-current-limiting fuses, 3 A, one-time fuse, interrupting rating of 50 kA at 600 Vac
Product Name
Eaton Bussmann series NOS fuse
Catalog Number
NOS-3
UPC
051712310031
EAN
5027590453967
Product Length/Depth
0.81 in
Product Height
5 in
Product Width
0.81 in
Product Weight
0.153 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
3 A
Interrupt rating
50 kAIC at 600 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class H
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
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 → Business Impact → Application: Class H general-purpose, non-current-limiting fuse provides predictable protection without nuisance trips, simplifying maintenance schedules and reducing downtime in panel assemblies. Application: Suitable for general control circuits in industrial machinery and automation cabinets. Feature → 3 A amperage rating translates to precise overcurrent protection for small loads, minimizing wasted downtime and component wear. Application: Control relays, sensors, and pilot circuits benefit from consistent protection. Feature → 50 kAIC interrupt rating at 600 Vac enables rapid fault clearance in higher fault-current environments, increasing safety and reducing damage to upstream gear. Application: Main feeds, motor controllers, and MCCs. Feature → Ferrule end x ferrule end connections offer reliable, fast terminations with standard hardware, easing field assembly and service. Application: Replacement in legacy harnesses and new builds alike. Feature → Pin-indicating capability supports quick status checks during maintenance, reducing diagnostic time. Application: Troubleshooting in live panels. Feature → Packaging type Standard and Quantity 10 per package simplifies stocking and reduces procurement complexity. Application: Procurement and warehousing in OEM and after-market spares. Feature → Compliances CE Marked confirms regulatory alignment for European installations, supporting audits and product labeling. Application: Global deployments needing CE compliance. Feature → Physical dimensions 0.81 in length/depth, 0.81 in width, and 5 in height define a compact footprint suited for crowded control panels and transportable enclosures. Application: Enclosures with limited space and modular panel layouts.
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FAQs
Yes. NOS-3 is designed as a Bussmann Series Class H general-purpose fuse with ferrule-end connections, matching the form factor and electrical ratings used in 600 V industrial panels. It fits standard panel assemblies and integrates with typical Bussmann Class H protection schemes, ensuring straightforward replacement and consistent performance.
NOS-3 is a 3 A, non-current-limiting fuse with an interrupt rating of 50 kAIC at 600 Vac. This combination provides reliable overcurrent protection for small loads while offering high fault-current clearance to prevent damage to conductors and equipment. It supports predictable clearing in typical automation circuits.
NOS-3 is ideal for general control circuits, sensors, small controllers, and pilot devices within industrial panels and machines. Its Class H construction and 600 V rating suit low-to-moderate voltage control networks and applications where predictable protection and easy sourcing are priorities.
NOS-3 carries CE marking, indicating compliance with essential EU directives and safety requirements. This aids regulatory audits and supports deployments in regions that require CE compliance. The fuse also aligns with Bussmann Series design standards for reliable, repeatable performance.
Using NOS-3 reduces downtime through reliable, easy-to-source protection components. The 10-pack packaging simplifies stocking and reduces the frequency of part shortages. The ferrule-end design speeds installation, while pin-indicating features help quick diagnostics, improving overall maintenance efficiency and return on investment.