Eaton KTK-1-1/4 Fuse for Control Circuits - 100 kAIC at 600V
Part Number: KTK-1-1/4
Quick Summary
KTK fuse provides compact control-circuit protection for industrial panels, safeguarding control and lighting circuits in demanding manufacturing environments. The challenge is delivering reliable protection in space-constrained enclosures without sacrificing interrupt capacity or serviceability. It is CE Marked and RoHS compliant, aligning with global safety and environmental standards, while offering a small footprint that helps maximize panel density. For procurement and maintenance teams, the combination of a 1.125 A rating, 600 V rating, and 100 kAIC interrupt capability translates to safer, more reliable control panels and reduced downtime, ultimately lowering total cost of ownership.
Product Information
Extended Description
KTK-1-1/4 Eaton: Eaton Bussmann series KTK fuse, Control circuits, Lighting circuit protection, Meter circuits, 1.125 A, Non-indicating, Ferrule end x ferrule end, 100 kAIC at 600 V, Nickel-plated bronze endcap, Melamine tube
Product Name
Eaton Bussmann series KTK fuse
Catalog Number
KTK-1-1/4
UPC
051712420266
EAN
5027590445764
Product Length/Depth
0.41 in
Product Height
1.5 in
Product Width
0.41 in
Product Weight
0.19 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1.125A
Interrupt rating
100 kAIC at 600 Vac
Voltage rating
600 V
Material
Melamine tube Nickel-plated bronze endcap
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Small footprint
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KTK-1-1/4
Feature → Business Impact → Application: Small footprint reduces panel real estate, enabling higher packing density and simpler NEC-compliant layouts in new builds or retrofits; the business impact is faster assemblies and lower enclosure costs, with application in compact control panels for automated machinery. Feature → Business Impact → Application: 100 kAIC interrupt rating at 600 V delivers robust fault protection, minimizing arc energy and protecting downstream components in lighting and meter circuits; this is critical for serviceable, high-reliability systems in demanding environments. Feature → Business Impact → Application: Ferrule end x ferrule end connection ensures reliable, vibration-resistant terminations for easily serviced installations, improving long-term reliability in panel boards and remote cabinets. Feature → Business Impact → Application: Melamine tube with nickel-plated bronze endcaps offers chemical resistance, thermal stability, and durable end seals, supporting longer fuse life in harsh industrial settings. Feature → Business Impact → Application: Non-indicating, maintenance-friendly design reduces nuisance diagnostics while compatibility with Bussmann catalog ecosystems streamlines sourcing for spare parts and upgrades. Feature → Business Impact → Application: CE Marked and RoHS Compliant certification ensures regulatory alignment and environmental responsibility across global facilities, enabling faster approvals for multinational projects.
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FAQs
When installing the KTK-1-1/4 fuse, ensure ferrule-end terminations are properly crimped for secure electrical contact and vibration resistance. Use panel layouts that maximize clearance around the fuse to aid cooling, and follow Eaton's datasheet guidance to match fuse size with conductor ampacity and enclosure rating for CE RoHS compliance.
A 100 kAIC interrupt rating means the fuse can safely interrupt high-energy faults without excessive arcing, protecting downstream components and reducing the risk of panel damage. This is especially beneficial in lighting and control circuits where fault currents can spike during startup or short-circuit events.
Yes. The fuse is rated for 600 V and uses a melamine tube with nickel-plated bronze endcaps, providing thermal stability and durability in industrial settings. Its compact footprint also supports dense panel designs where space optimization is critical without compromising protection.
The KTK-1-1/4 carries CE marking and RoHS compliance, signaling conformity with essential health, safety, and environmental directives. For projects in Europe or globally, these certifications simplify approvals and procurement while ensuring responsible material use and end-of-life considerations.
The combination of a small footprint, high interrupt rating, and robust construction reduces panel size and downtime, lowers maintenance costs, and simplifies spare parts stocking. For OEMs and integrators, this translates to faster builds, fewer field failures, and improved overall system uptime.