Eaton KAC-400 High Speed Fuse - UL Recognized, 200 kAIC
Part Number: KAC-400
Quick Summary
The Eaton KAC-400 high speed fuse provides fast overcurrent protection for industrial drives and power electronics. Many engineers struggle with nuisance trips, inrush sensitivity, and crowded panels that drive maintenance costs and downtime. This device is CE Marked and UL Recognized, delivering regulatory safety and reliability across global installations. As a compact, high-capacity rectifier fuse with blade end connections and stud mounting, it supports quick panel integration and easy serviceability. By pairing robust protection with proven certifications, it reduces downtime, lowers warranty exposure, and supports compliant electrical protection strategies for modern manufacturing environments.
Product Information
Extended Description
KAC-400 Eaton: Eaton Bussmann series Tron KAC high speed fuse, 400A, 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-400
UPC
051712474009
Product Length/Depth
6.182 in
Product Height
6.1 in
Product Width
2.1 in
Product Weight
1.98 lb
Warranty
Not Applicable
Compliances
CE Marked
Certifications
UL Recognized
Amperage Rating
400 A
Interrupt rating
200 kAIC
Packaging type
Standard
Connection
Blade end x blade end
Fuse indicator
Non Indicating
Mounting method
Stud
Feature: 400 A amperage rating with a 200 kAIC interrupt rating provides strong fault current protection for high-power circuits. Business Impact: Minimizes equipment damage and unplanned outages, enabling reliable uptime in motor drives and rectifier assemblies. Application: Ideal for industrial power electronics and switchgear where fast clearing of faults preserves costly equipment. Feature: Non-indicating fuse indicator reduces nuisance maintenance touches and panel clutter. Business Impact: Simplifies replacement workflows and lowers maintenance labor costs while maintaining safety standards. Application: Fits in busy control panels where external indication is provided by separate diagnostics. Feature: Blade end x blade end connection with stud mounting offers flexible installation. Business Impact: Accelerates installation and field retrofit, reducing downtime and installation risk. Application: Panel-mount protection in compact footprints within power distribution and drive systems. Feature: CE Marked and UL Recognized certifications ensure regulatory compliance and safety credibility. Business Impact: Enables global deployment with confidence, streamlining procurement and cross-border projects. Application: Suitable for international manufacturing sites and maintenance programs requiring proven standards. Feature: Compact dimensions (6.182 in L, 6.1 in H, 2.1 in W) and 1.98 lb weight support efficient space planning. Business Impact: Improves panel density and reduces enclosure size, cutting housing costs. Application: Retrofit projects and new builds where space is at a premium in electrical protection assemblies.
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FAQs
The KAC-400 uses blade end x blade end connections with a stud mounting method, allowing secure panel integration. Plan for its 6.182 in length, 2.1 in width, and 6.1 in height, and ensure bus bars or holder assemblies are compatible. Follow proper de-energization and safety procedures before installation.
The KAC-400 is rated for 400 A with an interrupt rating of 200 kAIC, designed for high-speed fault interruption. It is non-indicating, part of Eaton’s Tron line, and built for rapid protection in rectifier and drive circuits while meeting CE and UL standards.
Yes. The KAC-400 carries CE Marking for EU safety compliance and UL Recognized certification for North American safety standards. These certifications support cross-border deployments, simplify supplier qualification, and help ensure regulatory alignment in modern industrial facilities.
KAC-400 is ideal for rectifier fuses and high-current protection in industrial drives, power distribution panels, and switchgear. Its 400 A rating and 200 kAIC interrupt capacity make it suitable for systems requiring fast protection, compact footprint, and reliable performance in demanding manufacturing environments.
By delivering fast fault clearance and robust protection, the KAC-400 reduces unplanned downtime and equipment damage costs. Its non-indicating design lowers panel complexity, while UL/CE certifications streamline compliance and procurement. Together, these factors improve uptime, extend component life, and contribute to a favorable return on investment over the system’s lifetime.