Eaton KON125 Fuse - Class K5
Part Number: KON125
Quick Summary
Eaton Edison KON fuse provides reliable overcurrent protection for electrical panels and machine control circuits. For engineers, finding a compact, dependable protection device that can safely carry 125 A without excessive nuisance trips is a common challenge. The KON125 carries a 10 kAIC interrupt rating and a 250 V rating, offering strong fault clearance in standard control panels. It is CE marked and CSA certified, supporting compliance in European and North American environments. With a standard 7 inch length, 1 inch width and minimal footprint, it simplifies replacement and enables easier routing and wiring in crowded cabinet spaces. This combination of performance and regulatory readiness helps reduce downtime and save on maintenance costs.
Product Information
Extended Description
KON125 Eaton: Eaton Edison KON fuse, Knife blade, 125 A, Class K5, Non-indicating, 10 kAIC, Standard, 1, 250 V
Product Name
Eaton Edison KON fuse
Catalog Number
KON125
UPC
782634361251
Product Length/Depth
7 in
Product Height
1 in
Product Width
1 in
Product Weight
0.001 lb
Warranty
No warranty
Compliances
CE Marked
Certifications
CSA Certified Not Applicable
Amperage Rating
125 A
Interrupt rating
10 kAIC
Voltage rating
250 V
Packaging type
Standard
Class
Class K5
Fuse indicator
Non-indicating
Quantity
1
Special features
Indicating
Feature: Knife-blade design provides robust, quick disconnect protection with proven performance in panel and control circuits. Business Impact: Reduces arc flash risk and ensures reliable interruption at peak fault currents, improving overall system safety. Application: Ideal for machine control panels and electrical enclosures requiring dependable protection up to 125 A. Feature: 10 kAIC interrupt rating. Business Impact: Higher fault current handling minimizes damage to downstream components and simplifies coordination in systems with multiple protective devices. Application: Suitable for feeders and protection blocks in industrial automation racks. Feature: 250 V voltage rating. Business Impact: Supports standard low‑voltage control circuits and motor control center configurations, enabling straightforward integration with existing equipment. Application: Panel boards and control circuits in manufacturing environments. Feature: Class K5 designation. Business Impact: Optimizes selectivity and fast fault isolation, reducing collateral shutdowns and improving maintenance planning. Application: Subfeed protection in modular switchgear and control panels. Feature: Standard packaging and dimensions (7 in length, 1 in width, 1 in height). Business Impact: Facilitates easy mounting, replacement, and compatibility with common fuse holders, lowering installation time and inventory complexity. Application: Replacement in legacy Eaton Edison enclosures and new builds alike. Feature: Regulatory compliance (CE Marked, CSA Certified). Business Impact: Supports global deployment with reduced regulatory risk and smoother procurement processes. Application: International projects and sites with strict compliance requirements. Feature: Compact footprint with single-unit quantity. Business Impact: Space-efficient protection solution that helps maximize cabinet real estate and streamline stocking. Application: Small to mid-size control panels and compact machine automation assemblies.
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FAQs
The KON125 fuse is designed for standard knife-blade holders in electrical panels and machine control circuits. It carries a 125 A amperage rating, 250 V operating voltage, and a 10 kAIC interrupt rating, making it suitable for control panels, motor control centers, and compact enclosures that require reliable, fast fault isolation.
Under short-circuit conditions, the KON125 delivers up to 10 kAIC interrupt capability, enabling rapid fault clearance. This protects downstream components, minimizes collateral damage, and supports predictable maintenance windows in high‑demand automation environments.
Yes. With a 125 A rating and 250 V operating voltage, the KON125 is well-suited for motor control centers and panel boards where robust overcurrent protection, compact form factor, and straightforward replacement are priorities. The Class K5 design further enhances selectivity within multi‑device protection schemes.
The KON125 is CE marked and CSA certified, aligning with European and North American regulatory requirements. This helps streamline procurement and installation across international projects, reducing compliance risk and ensuring consistency with industry standards.
The KON125’s non-indicating design minimizes false indications and supports long-term reliability in busy control cabinets. Its compact footprint, standard dimensions, and proven interrupt performance translate to lower replacement time, easier stocking, and improved uptime, contributing to a favorable total cost of ownership.