Eaton KTK-R-1/4 fuse - 200 kAIC current-limiting Class CC
Part Number: KTK-R-1/4
Quick Summary
The Eaton KTK-R-1/4 fuse provides fast-acting current-limiting protection for industrial control panels and machinery. It addresses the common challenge of nuisance trips and unplanned downtime caused by overcurrent events that disrupt production. UL Listed and CSA Certified with RoHS Compliant CE Marked compliance, it supports global deployments while ensuring regulatory alignment. Featuring a 0.25 A rating at 600 V and a dual-element design, it delivers reliable circuit protection with minimal voltage drop, helping engineers meet safety standards and reduce maintenance overhead. This makes it a robust choice for electrical protection across industrial applications.
Product Information
Extended Description
KTK-R-1/4 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 0.25 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-1/4
UPC
051712420549
EAN
5027590445542
Product Length/Depth
1.5 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.016 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
0.25 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-1/4
KTK-R Spec Sheet
KTK-R Spec Sheet
Feature → Business Impact → Application: The KTK-R-1/4 is a current-limiting fast-acting fuse in Class CC with a dual-element design, which minimizes the severity of fault currents and protects downstream devices. This translates to fewer arc flashes, reduced equipment damage, and lower downtime in industrial control panels and machinery. Use it in automation cabinets and process equipment where rapid clearing of faults is essential and continuous production is critical. Feature → Business Impact → Application: With a 0.25 A amperage rating and a 600 V voltage rating, this fuse provides precise protection for low-current control circuits while tolerating normal operating transients, enabling reliable operation in lighting panels and distributed-control architectures. Feature → Business Impact → Application: The 200 kAIC interrupt rating supports high fault currents without nuisance tripping upstream, safeguarding power distribution and reducing cascading outages in street lighting or general lighting applications. Feature → Business Impact → Application: Rejection style ferrule-end connections ensure correct, fast installation and prevent mis-mating during panel assembly, improving installation quality and field service efficiency in control panels and equipment racks. Feature → Business Impact → Application: Non-indicating indicators and standard packaging (10 pieces) simplify stock management and routine maintenance planning, reducing inventory costs while ensuring quick access for replacements in service cabinets and automation projects.
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FAQs
Install the KTK-R-1/4 using ferrule-end connections to the corresponding fuse holders. Ensure the panel is de-energized, verify 600 V rating suitability, and align with Class CC accommodates. The rejection-style design helps prevent incorrect mating. Confirm the fuse is fully seated and replace only with the same amperage rating to maintain protection integrity.
Key specs include a 0.25 A amperage rating, 600 V voltage rating, dual-element current-limiting construction, and an interrupt rating of 200 kAIC. It is a Class CC, fast-acting fuse with a non-indicating fuse indicator. These features combine to protect circuits quickly while tolerating normal transients and minimizing downstream damage.
Yes. The KTK-R-1/4 is specified for industrial controls, street lighting, and general lighting applications. Its 600 V rating and 0.25 A current-limiting design accommodate lighting panel circuits and distribution networks, delivering reliable protection without excessive voltage drop or nuisance trips in typical lighting installations.
This fuse is UL Listed and CSA Certified, with RoHS compliance and CE marking. These certifications support regulatory compliance for North American and global deployments, ensuring supplier confidence and interoperability with other Bussmann series products.
The KTK-R-1/4 offers high fault current protection with minimal downtime due to fast-acting clearing, reducing unplanned outages. The dual-element design and standardized 1.5 inch length simplify stocking (quantity 10) and replacements, improving maintenance efficiency and overall lifecycle cost in automation cabinets and distributed control systems.