Eaton KTK-R-3/10 Fuse - Class CC, 200 kAIC Protection
Part Number: KTK-R-3/10
Quick Summary
KTK-R-3/10 fuse provides fast-acting current-limiting protection for industrial controls panels and machinery. In crowded electrical environments, nuisance trips and slow fault isolation can drive costly downtime. UL Listed and CSA Certified, RoHS Compliant and CE Marked, this device meets global safety and environmental standards. As a current-limiting Class CC fuse with ferrule-end connections, it delivers reliable protection with minimal heat rise and straightforward installation for panel builders and maintenance teams.
Product Information
Extended Description
KTK-R-3/10 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, Fast-acting, Dual-Element Current Limiting Fuse, 0.3 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-3/10
UPC
051712420556
EAN
5027590092296
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
0.3 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
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
Bussmann series Fuseology
Eaton Specification Sheet - KTK-R-3/10
KTK-R Spec Sheet
KTK-R Spec Sheet
The KTK-R-3/10 employs a dual-element current-limiting design that interrupts fault currents quickly while constraining arc energy, reducing collateral damage to transformers, capacitors, and wiring. This translates to lower maintenance costs and shorter downtime in critical machinery applications such as industrial controls panels and lighting installations. Rejection-style ferrule-end connections prevent misinsertion, improving field wiring safety and streamlining installation in control panels and distribution boards. With a compact footprint—1.5 inches long and 0.41 inches in height and width—along with a 0.3 A rating and 600 V maximum voltage, it fits tight spaces typical of modern switchgear and street-light circuits. The 200 kAIC interrupt rating provides robust protection for high-energy systems, while UL Listed and CSA Certified status supports audit-ready compliance. RoHS and CE marks extend global applicability for multinational projects and OEMs. Packaging of ten units per pack enables efficient stocking for maintenance teams and panel shops. The device’s non-indicating fuse indicator reduces unnecessary visual checks while maintaining reliable protection.
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FAQs
To install the KTK-R-3/10, verify the panel wiring matches a 600 V maximum rating and the 0.3 A current rating. Use ferrule-end terminations as designed, ensuring a clean crimp and no loose strands. The rejection-style design minimizes the risk of incorrect fuse insertion, and consult the time-current curve in the Eaton datasheet for expected trip behavior under fault conditions. This keeps maintenance streamlined and reduces field failures.
Key specs include a 0.3 A amperage rating, dual-element current-limiting construction, 600 V voltage rating, and a 200 kAIC interrupt rating. It is a Class CC fast-acting fuse with ferrule-end connections and a non-indicating indicator. The product is UL Listed and CSA Certified and RoHS CE compliant, suitable for industrial controls, lighting, and distribution applications.
Yes. With a 0.3 A rating and 600 V capability, it protects street lighting and industrial controls panels from overcurrent while limiting fault energy. Its dual-element design supports rapid clearing of faults, reducing downtime, and its compliance certifications simplify integration with municipal and industrial electrical codes. The ferrule-end connections aid reliable field wiring in compact installations.
The KTK-R-3/10 is UL Listed and CSA Certified, with RoHS and CE compliance. These certifications affirm safety and performance to recognized standards, enabling easier regulatory approvals across North America and Europe. For procurement, this alignment reduces risk in audits, supports quality assurance programs, and helps meet supplier qualification requirements in electrical panels and lighting projects.
The high interrupt rating of 200 kAIC and current-limiting performance reduce damage from surges and short circuits, lowering repair costs and downtime. The compact form factor simplifies panel design and maintenance, while the rejection-style feature reduces incorrect fusing. Over time, this translates to lower maintenance labor, fewer nuisance trips, and improved system uptime.