Eaton KTK-4 Fuse - 100 kAIC at 600 V
Part Number: KTK-4
Quick Summary
The Eaton KTK-4 fuse is a compact, fast-acting protection device for control and lighting circuits in industrial controls. Engineers often grapple with space constraints in panel boards while needing reliable fault isolation. This part is CE marked and RoHS compliant, aligning with European safety standards and environmental requirements. Designed for control circuits, meter circuits, and lighting protection, the KTK-4 delivers dependable electrical protection with a small footprint, helping reduce panel size and wiring complexity while meeting rigorous compliance. The ferrule-end connections enable quick, secure terminations, supporting faster assembly and easier maintenance, which translates into lower lifecycle costs for electrical protection upgrades.
Product Information
Extended Description
KTK-4 Eaton: Eaton Bussmann series KTK fuse, Control circuits, Lighting circuit protection, Meter circuits, 4 A, Non-indicating, Ferrule end x ferrule end, 100 kAIC at 600 V, Nickel-plated bronze endcap, Melamine tube, 600 V
Product Name
Eaton Bussmann series KTK fuse
Catalog Number
KTK-4
UPC
051712420242
EAN
5027590063562
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
4 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 complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KTK-4
KTK-4~LIMITRON FAST ACTING FUSE
Datasheet - FNQ-30
Feature: 4 A amperage rating enables precise protection for low-current control circuits. Business Impact: minimizes nuisance trips in PLC logic and field devices while preserving supply to essential sensors. Application: ideal for control circuits, meter circuits, and lighting protection in compact panels. Feature: 100 kAIC interrupt rating at 600 Vac provides high fault current handling, safeguarding equipment and reducing the risk of cascading failures. Application: protection for feeders and motor control circuits in industrial panels. Feature: Ferrule end x ferrule end connections allow quick, reliable terminations, speeding assembly and reducing the chance of loose connections. Application: supports fast maintenance in panel boards and control cabinets. Feature: Melamine tube with nickel-plated bronze endcaps offers robust heat resistance and durable terminations, improving long-term reliability in harsh environments. Application: suitable for industrial environments with frequent temperature and vibration exposure. Feature: Small footprint, non-indicating design and standard packaging save panel space and simplify installation, inventory, and certification processes. Application: ideal for OEMs and service teams implementing compact protection in distributed control systems.
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FAQs
The KTK-4 uses ferrule-end terminations for secure, quick connections. Ensure the panel is de-energized before installation, confirm cavity alignment, and insert the fuse fully into the holder to prevent arcing. Its compact ferrule-to-ferrule design supports fast field wiring and repeatable terminations in standard control panels.
The KTK-4 is rated for 4 A, with a voltage rating of 600 V. It provides an interrupt rating of 100 kAIC at 600 Vac, making it suitable for protecting low-current control circuits while tolerating higher fault currents without catastrophic failure.
Yes. The 4 A rating and 600 V rating, along with its compact form factor and ferrule-term connections, make the KTK-4 well-suited for control, meter, and lighting protection circuits within industrial panels and distributed control systems.
The KTK-4 is CE marked and RoHS compliant, ensuring compliance with European safety and environmental requirements. This helps streamline regulatory approvals, supplier audits, and regional market access for OEMs and integrators.
Its small footprint simplifies panel design and reduces enclosure size, while its robust construction minimizes nuisance trips and maintenance intervals. With reliable protection and straightforward installation, you can lower total cost of ownership through easier replacements and fewer field faults.