Eaton KOS300 Fuse - Class K5, 10 kAIC CE Marked
Part Number: KOS300
Quick Summary
The Eaton Edison KOS fuse provides high-capacity overcurrent protection for 600 V industrial panels and switchgear. Engineers often battle nuisance trips and miscoordination across feeders, causing unnecessary downtime. This device carries CE Marked compliance and CSA Certified capabilities, ensuring regulatory alignment and safer operation. With a knife-blade design and Class K5 rating, it enables quick replacement, precise selectivity, and minimized fault propagation. Rated at 300 A with a 10 kAIC interrupt and standard 11 inch length, it suits reliable, scalable protection for evolving electrical architectures. By aligning with Edison full-line resources, procurement teams streamline sourcing and maintenance planning. Its standard packaging and non-indicating form simplify installation in tight panel layouts.
Product Information
Extended Description
KOS300 Eaton: Eaton Edison KOS fuse, Knife blade, 300 A, Class K5, Non-indicating, 10 kAIC, Standard, 1, 600 V
Product Name
Eaton Edison KOS fuse
Catalog Number
KOS300
UPC
782634373001
Product Length/Depth
11 in
Product Height
2 in
Product Width
2 in
Product Weight
0.001 lb
Warranty
No warranty
Compliances
CE Marked
Certifications
Not Applicable CSA Certified
Amperage Rating
300 A
Interrupt rating
10 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class K5
Fuse indicator
Non-indicating
Quantity
1
Special features
Knife blade
300 A amperage rating with a 10 kAIC interrupt rating delivers decisive overcurrent protection for feeders and motor circuits. The business impact is clear: reduced fault energy, longer equipment life, and fewer unplanned outages. This is ideal for control panels and switchgear in industrial environments, where a robust protection strategy boosts uptime and predictable maintenance. Class K5 protection improves coordination with upstream fuses and breakers, enhancing system selectivity and minimizing nuisance trips. The business impact is improved energy efficiency and safer shutoffs, while reducing unnecessary downtime during faults. In practice, use KOS300 in Edison families to achieve reliable protection in motor control centers and panel boards. Knife-blade design enables quick, tool-free replacement, lowering maintenance time and exposure to arc faults during fuse changes. The business impact is faster MTTR and lower labor costs. In applications such as high-cycle packaging lines, technicians can swap fuses rapidly without extended downtime. Non-indicating status reduces indicator failure points and simplifies visual inspection when upstream indicators are used for status. This lowers ongoing maintenance and inventory costs, while reducing the risk of false positives in busy automation environments. At 11 inches long with a 2x2 inch footprint, the KOS300 fits standard Edison fuse holders and panel cavities, simplifying retrofits and new builds. Standard packaging supports quick stocking and reorder planning, while the one-fuse quantity aligns with typical maintenance spares. CE Marked and CSA Certified coverage ensures compliance across many regions, supporting procurement requirements and reducing compliance risk.
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FAQs
Install the KOS300 in standard Edison fuse holders designed for Class K5 fuses. Its 11 inch length and 2x2 inch footprint fit common panel spaces, and the knife-blade design supports quick replacements during maintenance. Ensure the protected circuit is rated for 300 A and that the system fault levels align with a 600 V, 10 kAIC rating.
The KOS300 is rated for 300 A with a 10 kAIC interrupt capability at 600 V. This lets it interrupt high fault currents promptly, minimizing arc energy and damage to downstream equipment. It is suited for industrial control panels, motor feeders, and switchgear where reliable, fast-acting protection is critical.
Yes. The KOS300 carries CE Marked compliance and CSA Certified status, supporting multi-regional regulatory requirements. While it does not list an IP rating in the provided data, it is designed for industrial electrical protection applications that require recognized safety certifications and traceable standards.
Ideal for industrial control panels, motor control centers, and switchgear, the KOS300 provides dependable overcurrent protection at 300 A and 600 V. Its Class K5 rating and knife-blade design make it suitable for high-duty environments where rapid replacement and precise coordination are essential.
The knife-blade design enables rapid, tool-free fuse changes, reducing MTTR and labor costs during maintenance. Its compatibility with Edison full-line accessories streamlines stocking and sourcing, while CE Marked and CSA Certified status helps ensure regulatory compliance, reducing downtime risk and procurement complexity over the fuse’s life cycle.