Eaton KOS1 Edison Fuse - Class K5, 10 kAIC, 600 V
Part Number: KOS1
Quick Summary
The Eaton KOS1 Edison fuse provides reliable 1 A overcurrent protection for control panels and industrial equipment. Engineers often contend with nuisance trips and compatibility gaps in low-current circuits, and this ferrule-design fuse helps reduce false trips while simplifying panel maintenance. It features CE marking and CSA status notes for international compliance, with a Class K5, non-indicating design to streamline status checks in dense switchgear. The combination of a compact form factor and standard packaging supports quicker procurement, easier stocking, and faster field replacements, delivering tangible time and cost savings in active automation environments.
Product Information
Extended Description
KOS1 Eaton: Eaton Edison KOS fuse, Ferrule design, 1 A, Class K5, Non-indicating, 10 kAIC, Standard, 10, 600 V
Product Name
Eaton Edison KOS fuse
Catalog Number
KOS1
UPC
782634370017
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
1 A
Interrupt rating
10 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class K5
Fuse indicator
Non-indicating
Quantity
10
Special features
Non-indicating
Feature → Business Impact → Application: Amperage rating of 1 A with a 10 kAIC interrupt rating at 600 V enables precise protection for small control circuits, reducing downstream damage and downtime while maintaining safety margins. This translates to fewer unplanned outages in PLC and relay networks and improved overall equipment effectiveness (OEE) in manufacturing lines. Application: Suitable for low-current protection in control cabinets, machine controllers, and instrument panels, adding reliability where precision matters. Feature → Business Impact → Application: Ferrule design and non-indicating status reduce the need for invasive inspection, enabling rapid post-trip assessment and simpler stocking in maintenance rooms. Application: Commonly used in Edison fuse assemblies and standard protection schemes for compact, high-density panels. Feature → Business Impact → Application: Class K5 classification ensures consistent protection behavior across Eaton’s Edison fuse family, supporting regulatory compliance and predictable performance in industrial environments. Application: Ideal for OEMs and integrators seeking scalable protection across multiple machines with minimal wiring changes. Feature → Business Impact → Application: Standard packaging (10 pieces per pack) improves procurement efficiency and minimizes expediting costs in large panel builds. Application: High-volume projects and service inventories where fast, reliable replacement is critical.
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FAQs
The KOS1 uses a ferrule design and is compatible with standard Edison fuse holders used in industrial control panels. When selecting a holder, verify it supports the 5 inch length and 0.81 inch width/height footprint, and confirm it accepts ferrule-type fuses to ensure reliable seating and proper contact resistance for consistent 10 kAIC interrupt ratings.
The KOS1 fuse is rated for 1 A current, with an interrupt rating of 10 kAIC and a voltage rating of 600 V. It uses a Class K5 fuse design and is non-indicating, with a standard packaging type. These specs support protection for low-current circuits while maintaining fast response in fault conditions.
Yes. The 1 A rating and 10 kAIC interrupt capability make the KOS1 well-suited for protecting PLC inputs, relay coils, and other low-current devices in control panels. Its compact ferrule style and standard packaging improve install efficiency and reduce panel downtime during fuse replacements.
The KOS1 fuse carries CE marking as part of its compliance package. CSA certification is listed as Not Applicable for this variant, which should be considered in relation to regional regulatory requirements. Always verify project-specific compliance needs with your quality team before procurement.
The KOS1’s 1 A rating paired with 10 kAIC interrupt rating minimizes unplanned outages in low-current circuits, reducing downtime. Standard packaging of ten units simplifies stocking but also lowers ordering complexity. Its non-indicating design may require periodic test procedures, but overall it delivers predictable protection, faster replacements, and reduced spare-part complexity for high-volume panel builds.