Eaton KTK-R-1/8 Fuse - 200kAIC Class CC, CE RoHS

Part Number: KTK-R-1/8
KTK-R-1/8
Manufacturer
Eaton
Part number
KTK-R-1/8
Category

Quick Summary

KTK-R-1/8 fuse provides fast-acting, current-limiting protection for industrial control panels and machinery. The challenge is avoiding nuisance trips and unplanned downtime caused by poorly chosen protection devices. This fuse is CE Marked, UL Listed, CSA Certified, and RoHS compliant, delivering reliable regulatory alignment across global installation sites. With a 0.125 A rating in a Class CC, dual-element, rejection-style package, it supports compact layouts while delivering robust fault protection. Choosing Eaton helps simplify spares, speed panel builds, and improve maintenance planning through a known time-current response and standard ferrule-end connections.

Product Information

Extended Description

KTK-R-1/8 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 0.125 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-1/8
UPC
051712420525
EAN
5027590445559
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
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
0.125A
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-1/8 KTK-R Spec Sheet KTK-R Spec Sheet
Feature: Current-limiting fast-acting design with 0.125 A rating and 600 V rating → Business Impact: Minimizes fault energy and protects sensitive components, reducing damage and downtime; Application: Ideal for small-control circuits in industrial panels and distribution networks. Feature: Dual-element construction with 200 kAIC interrupt rating → Business Impact: Higher fault withstand capability improves panel safety and reduces the risk of cascading failures; Application: Critical in machinery protection and power distribution. Feature: Rejection-style ferrule-end connections → Business Impact: Prevents misinsertions and accelerates safe, repeatable installations; Application: Standardized panel builds and service-friendly replacements. Feature: Compliance and certifications (UL Listed, CSA Certified, CE Marked, RoHS) → Business Impact: Eases international compliance and lowers regulatory risk; Application: Global manufacturing facilities and cross-border OEMs. Feature: Packaging and dimensions (1.5 in L, 0.41 in W/H, 10 pcs) → Business Impact: Streamlined stocking and quick substitution in orderly kitting; Application: Maintenance depots and assembly lines. Feature: Time-current behavior (as per time-current curve) → Business Impact: Predictable protection margins and optimized device coordination; Application: Panel protection strategy and safety compliance.

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FAQs

Yes. The KTK-R-1/8 uses ferrule-end connections designed to pair with standard Bussmann series fittings and common panel wiring practices. Ensure ferrules are properly crimped and seated, and verify the 600 V rating and time-current characteristics align with the panel protection strategy to avoid nuisance trips and ensure reliable fault handling.
The fuse provides a 200 kAIC interrupt rating, meaning it can safely interrupt high-energy faults. Its time-current performance is governed by the device’s current-limiting, fast-acting response, which reduces peak fault energy. Review the time-current curve for your specific circuit to coordinate with upstream protections and avoid nuisance tripping.
This fuse excels in industrial control panels, street lighting, general lighting, capacitors, and distribution networks. Its Class CC form factor, dual-element design, and 0.125 A rating make it ideal for protecting small control circuits while maintaining compact panel layouts and straightforward maintenance.
The KTK-R-1/8 is UL Listed, CSA Certified, CE Marked, and RoHS Compliant, providing wide regulatory coverage. These certifications help simplify cross-border deployments and ensure compliance with safety, environmental, and performance standards in multiple regions.
With standard ferrule-end connections, a 1.5 in length and 0.41 in cross-section, and packaging of 10 units, spares are easy to manage and replace. The reliable time-current response reduces unexpected outages, lowers warranty risk, and supports predictable maintenance planning, translating to lower total cost of ownership over the panel lifecycle.