Eaton KTK-R-20 Fuse - 200 kAIC, UL Listed
Part Number: KTK-R-20
Quick Summary
The KTK-R-20 fuse from Eaton provides rapid current-limiting protection for industrial control panels and machinery. When panel designs are tight, nuisance trips and equipment damage from short circuits can grind production to a halt; this fuse minimizes that risk. UL Listed, CSA Certified, and CE RoHS Compliant help you meet global compliance while supporting safety and reliability. The Class CC dual-element design delivers dependable protection in demanding loads, while ferrule-end connections enable straightforward field installation. In addition to protecting drives and relays, this fuse supports efficient maintenance and uptime across industrial lighting, distribution, and capacitor applications.
Product Information
Extended Description
KTK-R-20 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 20 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-20
UPC
051712420716
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.18 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
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
20 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
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Bussmann Full Line Catalog
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Bussmann series Fuseology
Eaton Specification Sheet - KTK-R-20
KTK-R Spec Sheet
KTK-R Spec Sheet
Feature: Dual-element current-limiting design → Business Impact: Reduces fault energy and arc duration, protecting downstream devices and wiring while minimizing damage to power feeds. Application: Industrial controls panels and machinery where fast isolation is critical. Feature: Rejection style construction → Business Impact: Prevents mis-insertion in crowded control cabinets, lowering commissioning risk and maintenance errors. Application: High-density electrical assemblies in floor-standing panels and street-lighting enclosures. Feature: 20 A rating with Class CC designation → Business Impact: Optimizes protection for common control circuits, enabling precise coordination with upstream breakers and fuses. Application: Relay banks, motor starters, and PLC power rails. Feature: 600 V rating with 200 kAIC interrupt rating → Business Impact: Enables safe operation in higher-voltage systems and protects against high fault currents, reducing downtime and repair costs. Application: Industrial distribution, capacitors, and control power networks. Feature: Ferrule end x ferrule end connections → Business Impact: Simplifies installation with reliable crimp terminations and compatibility with standard Bussmann tooling. Application: Retrofit and new-build panels in manufacturing environments. Feature: Certifications and compliance → Business Impact: Streamlines regulatory approvals and quality assurance processes, accelerating time-to-operation. Application: Global deployments requiring UL Listed, CSA Certified, and CE RoHS compliance.
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FAQs
The KTK-R-20 is a dual-element current-limiting Class CC fuse designed for industrial control panels and machinery. It provides fast-acting protection against short circuits, limiting fault energy to protect downstream components, wiring, and power supplies. With a 20 A rating and 200 kAIC interrupt capacity at 600 V, it suits motor drives, relays, and power rails in demanding environments.
Yes, the KTK-R-20 is rated for 600 V systems. It features ferrule end to ferrule end connections, enabling reliable crimp termination and straightforward field installation with standard Bussmann tooling. This termination supports consistent contact reliability, easy replacement, and compatibility with common panel hardware.
The KTK-R-20 is UL Listed and CSA Certified, with CE Marking and RoHS compliance. These certifications verify safety and regulatory alignment for global deployments, simplify supplier qualification, and support patient, factory, and field installation requirements across industrial markets.
A dual-element current-limiting fuse rapidly responds to overcurrent events, limiting both thermal and arcing energy. This reduces risk to conductors and equipment, shortens fault duration, and minimizes downstream damage. It’s particularly beneficial for panels housing sensitive electronics, motors, and capacitive banks where uptime and equipment longevity are critical.
Applications include industrial control panels, street lighting, capacitor banks, and general distribution in manufacturing facilities. The 20 A, 600 V rating with a 200 kAIC interrupt capacity makes it well-suited for circuits requiring reliable protection against high fault currents, while the rejection-style ferrule-end design simplifies installation and reduces mis-insertion risk.