Eaton KTK-1/4 Fuse - 0.25A, 600V, 100 kAIC, Small footprint
Part Number: KTK-1/4
Quick Summary
Eaton Bussmann KTK-1/4 fuse provides precise, fast-acting protection for control circuits and lighting panels. Engineers frequently contend with crowded control rooms, panel space constraints, and choosing a fuse that won’t nuisance-trip under normal inrush. This product carries CE marking and RoHS compliance, supporting European market requirements and sustainable manufacturing practices. The compact footprint and ferrule-end construction enable quick installation in tight panels and legacy Bussmann holders, while delivering reliable performance in demanding environments. In practice, it is a solid fit for control circuits, meter circuits, and lighting protection, delivering consistent protection with minimal maintenance and downtime.
Product Information
Extended Description
KTK-1/4 Eaton: Eaton Bussmann series KTK fuse, Control circuits, Lighting circuit protection, Meter circuits, 0.25 A, Non-indicating, Ferrule end x ferrule end, 100 kAIC at 600 V, Melamine tube, Nickel-plated bronze endcap, 600 V
Product Name
Eaton Bussmann series KTK fuse
Catalog Number
KTK-1/4
UPC
051712420044
EAN
5027590445795
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
RoHS Compliant CE Marked
Amperage Rating
0.25 A
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 Fuseology
Eaton Specification Sheet - KTK-1/4
KTK-1/4~KTK-1-4~LIMITRON FAST ACTING FUSE
Feature → Business Impact → Application: Small footprint design enables higher packing density in control panels, reducing cabinet size and installation time while maintaining reliable fuse protection for low-current control circuits. This translates to faster commissioning, easier retrofits, and lower overall system cost in automation cabinets and lighting panels. Application: control panels with limited space, meter and signaling circuits, compact automation enclosures. Long-tail keywords: small footprint fuses, ferrule end fuses, compact control panel protection. Feature → Business Impact → Application: 100 kAIC interrupt rating at 600 Vac delivers robust fault current interruption, minimizing damage to downstream equipment and reducing downtime after a short-circuit. Industry use includes motor-control centers and automation racks where fault current can spike. Application: industrial automation, motor protection, high-current panels. Long-tail keywords: high interrupt rating fuses, fast-acting protection, industrial electrical protection. Feature → Business Impact → Application: 0.25 A amperage with 600 V rating provides precise, selective protection for low-current circuits, preventing nuisance trips while safeguarding meters and control logic. Application: instrument panels, PLC input circuits, lighting controls. Long-tail keywords: 0.25 A fuse, 600 V fuse, precise overcurrent protection. Feature → Business Impact → Application: Non-indicating design reduces visual indicators in crowded panels, lowering maintenance checks and avoiding misreads in busy control rooms. Application: standard control circuits, compact lighting circuits, power-limited instrumentation. Long-tail keywords: non-indicating fuse, minimal maintenance, indicator-free protection. Feature → Business Impact → Application: Melamine tube with nickel-plated bronze endcaps offers reliable heat resistance and mechanical durability in harsh environments, improving service life and reducing replacement cycles. Application: industrial environments with temperature and vibration exposure. Long-tail keywords: melamine fuse tube, nickel-plated endcaps, high-temperature fuse. Feature → Business Impact → Application: CE marking and RoHS compliance simplify regulatory onboarding and supplier qualification for European operations, supporting audits and compliance reporting. Application: European market integration, supplier compliance programs. Long-tail keywords: RoHS compliant fuse, CE marked fuse, regulatory compliance for electrical protection.
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FAQs
To install the KTK-1/4, ensure the panel has a compatible Bussmann holder or fuse block that accepts ferrule-end fuses. Verify the circuit is de-energized, insert the fuse fully into the ferrule-ended terminals, and secure with the standard clamp or end-cap hardware. Confirm 600 V system compatibility and re-energize only after proper seating.
KTK-1/4 is rated for 0.25 A at 600 V with a 100 kAIC interrupt rating. This makes it well suited for control circuits, lighting circuits, and meter circuits in industrial panels where precise, fast-acting protection is needed without nuisance trips in normal operation.
Yes. Its small footprint, ferrule-end connections, and high interrupt rating support compact, reliable protection in automation cabinets. It is especially beneficial in tight spaces, field retrofits, and equipment where rapid response to overcurrent events minimizes downtime and collateral damage to sensitive electronics.
The KTK-1/4 fuse carries CE marking and RoHS compliance, which facilitate regulatory acceptance in European markets and green manufacturing practices. These certifications help with supplier qualification, field audits, and customer requirements for environmentally responsible electrical protection components.
The fuse’s non-indicating design reduces visual checks, while its compact form and high reliability cut panel space needs and replacement cycles. The combination of precise protection, minimal nuisance trips, and robust construction translates to lower maintenance labor, less unscheduled downtime, and a faster return on investment in critical automation systems.