Eaton KOS20 Fuse - Class K5, 600V, CE Marked for Panels
Part Number: KOS20
Quick Summary
Eaton Edison KOS fuse provides reliable overcurrent protection for electrical panels and industrial drives. Engineers frequently contend with nuisance tripping and downtime when fuses are undersized or mismatched to inrush currents. This product carries CE Marked compliance, Class K5 protection, and a 10 kAIC interrupt rating at 600 V to meet stringent safety and performance requirements. For procurement and maintenance teams, it offers standard packaging, clear specifications, and strong global support to streamline sourcing, stocking, and field service. In modern automation architectures, that translates to reduced downtime, predictable protection, and easier accessory compatibility, all while maintaining compliance with industry safety standards.
Product Information
Extended Description
KOS20 Eaton: Eaton Edison KOS fuse, Ferrule design, 20 A, Class K5, Non-indicating, 10 kAIC, Standard, 10, 600 V
Product Name
Eaton Edison KOS fuse
Catalog Number
KOS20
UPC
782634370208
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.15 lb
Warranty
No warranty
Compliances
CE Marked
Certifications
Not Applicable CSA Certified
Amperage Rating
20 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: Ferrule-design construction delivers a robust, repeatable contact interface, improving arc suppression and protecting sensitive control circuitry. Business impact: Fewer nuisance trips, lower replacement costs, and longer fuse life in demanding environments. Application: Ideal for control panels and motor drives in automation projects where space efficiency and reliability matter. Feature: 20 A rating with 600 V and 10 kAIC interrupt capacity. Business impact: Provides strong short-circuit protection, enabling faster fault clearing and reduced equipment damage, which lowers downtime. Application: Suitable for drives, controllers, and power distribution in medium-load industrial lines. Feature: Class K5 and non-indicating design. Business impact: Simplifies installation in dense panels and reduces indicator wear; supports clean, maintenance-friendly layouts. Application: Fits standard DIN rail assemblies in control cabinets and compact switchgear. Feature: Standard packaging and compact footprint (5 in length, 0.81 in square). Business impact: Improves stocking efficiency, reduces shipping costs, and eases field replacement in busy production lines. Application: Widely compatible with Eaton Bussmann Edison line accessories and replacement programs. Feature: Compliance and warranty details (CE Marked, CSA status noted, No warranty). Business impact: Supports regulatory conformity and clear procurement terms, enabling faster validation and budgeting. Application: Appropriate for global deployments across panel builders and OEMs who require documented standards.
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FAQs
Verify that the panel accepts ferrule-design fuses and that the footprint matches the 5 in length and 0.81 in width. The KOS20 is a 20 A, 600 V device with a 10 kAIC interrupt rating, designed for Edison-compatible panels and standard DIN rail installations. Confirm packaging quantity (10 per kit) and ensure the non-indicating fuse aligns with your labeling practices.
Key specs are 20 A amperage rating, 600 V voltage rating, and 10 kAIC interrupt capacity. For high-inrush loads, ensure the fuse size accounts for startup currents while maintaining protection against short circuits. The KOS20’s Class K5 construction and ferrule design help minimize nuisance trips and arc damage during faults in motor control centers.
The KOS20 carries CE Marked compliance, reflecting conformity with applicable European safety standards. The provided data lists CSA as Not Applicable, so CSA certification should be verified with Eaton if required for your project. Always align your selection with local regulatory requirements and procurement policies.
Yes, the KOS20 is a ferrule-design fuse with a standard 5 in length and 0.81 in width, intended for typical Edison Bussmann configurations and DIN rail mounting. Replacement does not require rewiring if the circuit is within 20 A and 600 V ratings. Maintain the same interrupt rating (10 kAIC) and non-indicating status for consistency.
The KOS20 is listed with No warranty, so planning should account for end-of-life replacement cycles per maintenance schedules. Its compact form factor and standardized packaging support easy stocking and quick field swaps, reducing downtime and inventory complexity in routine maintenance and outages.