Eaton KAC-40 High Speed Fuse - 200 kAIC UL Recognized
Part Number: KAC-40
Quick Summary
Eaton KAC-40 high speed fuse provides fast overcurrent protection for power systems in industrial controls. Engineers face nuisance outages from mis-specified protection; KAC-40 helps prevent nuisance trips and unplanned downtime. With CE marking and UL Recognized certification, it meets global safety standards while offering a compact blade-end x blade-end with stud mounting for flexible installation. In practice, this translates to faster fault isolation, easier panel design, and reduced total cost of ownership for power controls and rectifier circuits. Operators benefit from predictable protection at 40 A with an impressive 200 kAIC interrupt rating, ensuring robust performance during heavy faults. Designed for Bussmann Tron KAC applications, it supports blade-end x blade-end connections and stud mounting for reliable, space-efficient installation.
Product Information
Extended Description
KAC-40 Eaton: Eaton Bussmann series Tron KAC high speed fuse, 40A, 200 kAIC, Non Indicating, High speed fuse, Blade end X blade end, Stud
Product Name
Eaton Bussmann series Tron KAC high speed fuse
Catalog Number
KAC-40
UPC
051712470407
EAN
5027590063241
Product Length/Depth
0.76 in
Product Height
4.32 in
Product Width
0.76 in
Product Weight
0.13 lb
Warranty
Not Applicable
Compliances
CE Marked
Certifications
UL Recognized
Amperage Rating
40 A
Interrupt rating
200 kAIC
Packaging type
Standard
Connection
Blade end x blade end
Fuse indicator
Non Indicating
Mounting method
Stud
Feature → Business Impact → Application: High speed 40 A protection with 200 kAIC interrupt rating enables fast fault isolation, reducing arc energy and protecting costly power electronics; ideal for rectifiers, motor drives, and DC power supplies where short circuits are common. Feature → Business Impact → Application: Non Indicating fuse simplifies panel layout and reduces panel space while maintaining reliable protection; suitable for remote indicators or where centralized monitoring exists. Feature → Business Impact → Application: Blade end x blade end connections with stud mounting provide flexible mounting options in compact control cabinets; enhances retrofit ability and minimizes wiring complexity in switchgear. Feature → Business Impact → Application: Standard packaging and compact dimensions (0.76 in W, 0.76 in D, 4.32 in H) support tight enclosures and ease of procurement; beneficial for OEM machines and retrofit projects. Feature → Business Impact → Application: CE Marked and UL Recognized certifications ensure regulatory compliance across EU and US markets; facilitates global deployment and reduces compliance risk for machinery builders. Feature → Business Impact → Application: 40 A rating aligned with typical protection for 3–phase power control panels and rectifier assemblies; provides scalable protection with predictable trip behavior and easier coordination. Industry context insights: As part of the Bussmann Tron KAC family, it supports consistent performance across a range of high-speed fuse applications, helping engineers standardize protection strategies while minimizing spare parts inventory and downtime.
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FAQs
Yes. The KAC-40 uses blade end x blade end connections and is designed for stud mounting, enabling straightforward installation in most Eaton Bussmann Tron KAC application footprints. Ensure correct holder geometry, torque on mounting studs, and adequate clearance for heat dissipation. The compact dimensions (0.76 in width, 4.32 in height) help fit into tight control cabinets.
The 200 kAIC interrupt rating indicates the fuse can safely interrupt fault currents up to 200 kiloamperes on a continuous basis without sustaining damage. This value supports protection for high-current feeders, rectifier stages, and motor-drive circuits, reducing the risk of equipment damage during short circuits and enabling selective coordination with downstream protective devices.
The KAC-40 is well-suited for power rectifiers, motor drives, power supplies, and switchgear assemblies within industrial control panels. Its 40 A rating and blade/stud mounting provide reliable protection in compact enclosures, while UL Recognized and CE Marked certifications support global deployment in EU and US facilities.
The KAC-40 carries UL Recognized certification and CE Marking. UL Recognized confirms safety and reliability under standardized test conditions, while CE Marking ensures compliance with European health, safety, and environmental requirements. Together, they simplify regulatory acceptance, supplier qualification, and global market access for panel builders and OEMs.
Because the KAC-40 is non-indicating, maintenance emphasis shifts to periodic functional testing and coordination checks rather than visual fault indication. The high interrupt rating and reliable performance reduce downtime and potential equipment damage, contributing to lower total cost of ownership, faster fault isolation, and improved system uptime in production environments.