Eaton NOS-50 Fuse - Class K5, CE Marked, 50 A/600 V
Part Number: NOS-50
Quick Summary
The Eaton NOS-50 fuse provides general-purpose circuit protection for industrial control panels and power distribution. Engineers often face nuisance trips and unpredictable outages when using older, non-current-limiting fuses in demanding environments. This device carries CE marking and belongs to the Bussmann Series Class K5 family, delivering a proven 50 kAIC interrupt rating at 600 V to support safe shutdown. With ferrule-end connections and a compact 5.5 in length, it installs quickly in standard enclosures, reducing maintenance time and inventory complexity. For procurement and maintenance teams, NOS-50 combines reliable protection with predictable replacement cycles, helping minimize downtime and total cost of ownership.
Product Information
Extended Description
NOS-50 Eaton: Eaton Bussmann Series Class K5 fuse, NOS, general purpose, non-current-limiting fuses, 50 A, one-time fuse, interrupting rating of 50 kA at 600 Vac
Product Name
Eaton Bussmann series NOS fuse
Catalog Number
NOS-50
UPC
051712310505
Product Length/Depth
5.5 in
Product Height
1.06 in
Product Width
1.06 in
Product Weight
0.25 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
50 A
Interrupt rating
50 kAIC at 600 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class H Class K5
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: 50 A amperage rating with 50 kAIC interrupt rating at 600 VAC → Business Impact: provides robust fault-current interruption, reducing arc flash risk and equipment damage, improving overall line reliability. Application: ideal for power distribution panels and motor control centers in industrial facilities. Feature: Class K5 and Bussmann Series compatibility → Business Impact: standardizes spares and simplifies replacements across existing Bussmann infrastructure, lowering inventory costs. Application: retrofits and new builds leveraging Bussmann components. Feature: Ferrule end x ferrule end connection with pin-indicating capability → Business Impact: simplifies field termination and quick verification of fuse status during maintenance. Application: panel boards and control cabinets with ferrule-term connections. Feature: Compact form factor (5.5 in length, 1.06 in width, 0.25 lb) → Business Impact: saves enclosure space and shipping costs while enabling easier handling. Application: tight-ditches and compact control enclosures. Feature: Non-indicating fuse design → Business Impact: reduces false status signals in crowded switchgear environments, while maintaining predictable protection. Application: scenarios where dedicated indicator signaling is managed elsewhere.
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FAQs
NOS-50 uses ferrule-end connections (Ferrule end x ferrule end), matching standard Bussmann ferrule terminations. This ensures straightforward field installation, reliable termination, and minimal modification to existing panels or boards.
NOS-50 is ideal for general-purpose protection in industrial control panels, power distribution blocks, and motor control centers where a reliable 50 A, 600 V non-current-limiting fuse with a 50 kAIC interrupt rating is appropriate.
NOS-50 provides a 50 A amperage rating, 50 kAIC interrupt rating at 600 VAC, and a voltage rating of 600 V, with a Class K5 construction suitable for Bussmann series installations.
The NOS-50 fuse is CE Marked, indicating compliance with European safety standards for electrical equipment in industrial environments.
Consider the ferrule-end connections, the 5.5 in length and compact footprint, and the non-indicating fuse behavior. The package includes 10 units per quantity, aligning with standard replacement cycles and minimizing downtime in control cabinets.