Eaton KTK-R-3 Fuse - UL Listed, 200 kAIC
Part Number: KTK-R-3
Quick Summary
The Eaton KTK-R-3 fuse is a current-limiting protective device designed for industrial control panels and machinery. It minimizes nuisance trips by rapidly clearing faults, helping maintain uptime in demanding environments. UL Listed, CSA Certified, RoHS compliant and CE marked, it meets key global safety and environmental standards across regions. As a compact Class CC fast-acting fuse with a 3 A rating and a 600 V maximum, it reduces panel footprint while simplifying spare-part stocking and installation. By combining reliability with industry-leading interruption performance (200 kAIC), it delivers predictable protection for motors, contactors, and capacitive loads, supporting both OEMs and end users in achieving higher overall equipment efficiency.
Product Information
Extended Description
KTK-R-3 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 3 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-3
UPC
051712420624
EAN
5027590445634
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.15 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
3 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
Bussmann Full Line Catalog
Bussmann series Fuseology
Eaton Specification Sheet - KTK-R-3
KTK-R Spec Sheet
KTK-R Spec Sheet
Feature: Current-limiting fast-acting Class CC fuse with dual elements. Business Impact: It clamps fault energy quickly, reducing heat rise, extending component life, and helping meet protection levels required by industry standards. Application: Ideal for industrial controls panels and distribution buses where precise protection and fast clearing are essential. Feature: 3 A rating at 600 V with 200 kAIC interrupt capability. Business Impact: Enables safe operation across common industrial voltages while delivering robust protection against high fault currents. Application: Motor starters, contactor coils, and capacitor banks in machinery and process equipment. Feature: Rejection style ferrule-end connections. Business Impact: Simplifies safe insertion, minimizes mis-wire events, and speeds field replacement in tight panel layouts. Application: OEM control cabinets and retrofit projects where reliable mechanical fit matters. Feature: Dual-element construction for fast response and arc suppression. Business Impact: Reduces energy let-through during faults, improving upstream equipment protection and reducing downstream damage. Application: Distribution panels and feeders with mixed load types. Feature: Certifications and compliance (UL Listed, CSA Certified, RoHS, CE Mark). Business Impact: Streamlines procurement and regulatory clearance for global deployments while supporting sustainability goals. Application: Global manufacturing installations and multi-site projects requiring certified protection.
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FAQs
Install the KTK-R-3 in appropriate Bussmann-class CC fuse holders with ferrule-end connections. Verify the panel's feeder and load are within 3 A and 600 V ratings, then insert the fuse until seated. Use the standard packaging quantity of 10 for stock, and replace only with the same Class CC, current-limiting device to preserve interrupt performance (200 kAIC).
KTK-R-3 is a dual-element, current-limiting fast-acting Class CC fuse rated at 3 A and 600 V, designed to rapidly interrupt fault currents and minimize energy let-through. This combination reduces damage to adjacent components and helps meet fast-clearing requirements in industrial control circuits.
Yes. The KTK-R-3 is UL Listed, CSA Certified, RoHS Compliant, and CE Marked, ensuring compliance with international safety, environmental, and performance standards suitable for global manufacturing and multi-site installations.
This fuse is well suited for industrial controls panels, street lighting, general lighting, capacitors, and distribution networks. Its 3 A rating and 600 V capability make it a good fit for control circuits, motor starters, and protection of low-to-medium voltage distribution.
The ferrule-end connections simplify replacement and reduce mis-wiring risk, minimizing downtime during maintenance. Its high interrupt rating (200 kAIC) supports reliability in high fault-current environments, lowering the total cost of ownership by reducing panel downtime and warranty costs.