Eaton KOS4 Fuse Edison - Class K5, 10 kAIC, 600 V
Part Number: KOS4
Quick Summary
The Eaton KOS4 Fuse Edison provides fast overcurrent protection for electrical panels and motor controls. Engineers often face nuisance trips and the challenge of selecting protection that matches panel space and maintenance routines. This ferrule-design, Class K5 fuse is CE marked and CSA certified, with a 4 A rating, 600 V voltage rating, and a 10 kAIC interrupt rating. Packaged in a standard quantity of ten, it supports easy stocking and quick replacements in production environments. Its compact 5 inch length and non-indicating design reduce wiring complexities while improving fault isolation processes. In short, KOS4 offers reliable protection, installation efficiency, and predictable performance across industrial control applications.
Product Information
Extended Description
KOS4 Eaton: Eaton Edison KOS fuse, Ferrule design, 4 A, Class K5, Non-indicating, 10 kAIC, Standard, 10, 600 V
Product Name
Eaton Edison KOS fuse
Catalog Number
KOS4
UPC
782634370086
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.001 lb
Warranty
No warranty
Compliances
CE Marked
Certifications
CSA Certified Not Applicable
Amperage Rating
4 A
Interrupt rating
10 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class K5
Fuse indicator
Non-indicating
Quantity
10
Special features
Ferrule design
Ferrule-design terminations reduce field wiring time and provide reliable conductor termination, cutting commissioning delays and labor costs. The 5 inch long, compact footprint fits crowded panels, speeding installation in control cabinets and motor control centers. With a 10 kAIC interrupt rating and a 600 V rating, the fuse delivers robust protection for fault currents typical in industrial environments, improving uptime and safety. The non-indicating design minimizes visual clutter in control panels while preserving clear fault isolation during maintenance. Standard packaging of ten units simplifies stocking, procurement, and planning for spare parts kits, reducing downtime when replacements are needed. CE Marking and CSA certification add regulatory confidence for cross-border deployments, supporting compliant upgrades and replacements across facilities. Compatibility with the Eaton Edison KOS series enhances lifecycle support and spare-part availability for maintenance teams.
Get a Quick Quote for a Eaton KOS4
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton KOS4?
Enquire Now
FAQs
Yes. The KOS4 Edison fuse uses the ferrule-design terminations standard to Bussmann Edison holders, compatible with common 600 V panels. Ensure the holder supports a 5 inch long, 0.81 inch wide ferrule fuse and select the 4 A rating for circuits up to 10 kAIC. Follow Eaton installation guidelines for proper crimping and torque.
The KOS4 fuse features a 4 A amperage rating, 10 kAIC interrupt rating, and a 600 V voltage rating. It has a ferrule-design termination, is non-indicating, and belongs to Class K5. Each pack contains 10 fuses, with a 5 in length and 0.81 in width and height, facilitating compact control-panel installations.
Yes. The KOS4 is CE marked and CSA certified, aligning with European and North American regulatory expectations. This makes it appropriate for control panels, motor control centers, and other industrial applications where compliant overcurrent protection is required, while delivering reliable protection at 4 A and 600 V.
The ferrule-design provides crisp, repeatable terminations that speed wiring and reduce termination errors. This translates to faster panel assembly and easier maintenance. The non-indicating feature minimizes panel clutter, while the compact form factor supports easier retrofits and replacements in tight enclosures without sacrificing protection quality.
KOS4 offers predictable protection with a robust 10 kAIC interrupt rating and 600 V rating, which reduces the risk of costly faults. Its standard 10-unit packaging simplifies stocking and spares planning, lowering procurement and downtime costs. The ferrule design accelerates installation, delivering faster commissioning and more reliable uptime in automated lines.