Eaton KTK-R-4 Fuse - UL Listed Class CC 200 kAIC
Part Number: KTK-R-4
Quick Summary
The Eaton KTK-R-4 fuse is a fast-acting current-limiting device for industrial controls panels and machinery. Engineers often struggle with nuisance tripping and cramped panel layouts that drive maintenance downtime. UL Listed and CSA Certified, RoHS Compliant, and CE Marked, it meets global regulatory requirements while providing reliable protection. With a compact Class CC form factor and a 4 A rating, it supports safe, scalable protection and easier procurement across projects. Its dual-element design and 200 kAIC interrupt rating further reduce fault impact, delivering measurable uptime and long-term cost savings.
Product Information
Extended Description
KTK-R-4 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 4 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-4
UPC
051712420631
EAN
5027590445672
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.015 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Certifications
UL Listed CSA Certified
Type
Current-limiting fast-acting fuse
Special features
Rejection style
Application
Industrial controls panels and machinery, street lighting, general lighting, capacitors and distribution
Amperage Rating
4 A
Number of elements
Dual
Class
Class CC
Interrupt rating
200 kAIC
Fuse indicator
Non-indicating
Connection
Ferrule end x ferrule end Ferrule
Response time
See time current curve
Material
Melamine tube
Packaging type
Standard
Quantity
10
Voltage rating
600 V
Bussmann Full Line Catalog
Bussmann Full Line Catalog
Bussmann Full Line Catalog
DA-PD-Bus_Ele_DS_1015_KTK-R
Bussmann series Fuseology
Eaton Specification Sheet - KTK-R-4
KTK-R Spec Sheet
KTK-R Spec Sheet
Feature: Dual-element current-limiting fast-acting fuse with 200 kAIC interrupt rating. Business Impact: Rapid fault clearance minimizes arc duration, reduces heat stress on equipment, and lowers downtime costs. Application: Ideal for industrial controls panels and distribution networks where high interrupt performance is required. Feature: Class CC, 4 A rating. Business Impact: Aligns with common control circuits, enabling compact protection without oversizing infrastructure. Application: Control panels, motor starters, and lighting systems in industrial settings. Feature: Rejection style ferrule-end connections. Business Impact: Ensures correct orientation and reliable, vibration-resistant terminations, reducing field miswiring. Application: Panel assemblies and field upgrades in harsh environments. Feature: 600 V voltage rating and dual elements. Business Impact: Supports safe operation across medium-voltage DC/AC distribution, improving system reliability. Application: Street lighting, capacitors banks, and general distribution networks. Feature: RoHS Compliant and CE/UL/CSA certified. Business Impact: Enables global compliance and streamlined procurement across multinational projects. Application: Environments requiring formal certifications for regulated markets. Feature: Non-indicating design. Business Impact: Simplifies cost modeling and reduces visual indicators inside compact control enclosures. Application: Standard control panels where status indication is managed by separate diagnostics.
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FAQs
Yes. The KTK-R-4 uses ferrule-end x ferrule-end connections, which aligns with common Bussmann-series panel terminations, ensuring reliable, vibration-resistant connections and straightforward installation in existing enclosures.
The fuse is a current-limiting fast-acting Class CC device rated at 4 A with a 600 V rating and an interrupt capacity of 200 kAIC. It is non-indicating with dual elements, designed for rapid fault clearance and minimal arc energy in protected circuits.
Ideal for industrial controls panels and machinery, street lighting, general lighting, capacitors and distribution networks, where compact protection and high interrupt capability are required without oversizing the protection scheme.
The KTK-R-4 is UL Listed and CSA Certified, RoHS Compliant, and CE Marked, ensuring global regulatory compliance and suitability for multinational equipment builds.
By delivering fast fault clearance (200 kAIC) and reliable, compatible terminations, the KTK-R-4 reduces unplanned downtime, simplifies procurement through standard Bussmann-series compatibility, and lowers maintenance costs in demanding industrial environments.