Eaton KTK-R-4/10 Fuse - 200 kAIC
Part Number: KTK-R-4/10
Quick Summary
The Eaton KTK-R-4/10 fuse is a current-limiting fast-acting protector designed for industrial controls panels and machinery. Engineers often struggle with nuisance tripping and selecting fuses that balance fast protection with easy maintenance. This device carries UL Listed, CSA Certified, and CE RoHS compliance, reinforcing reliability and regulatory alignment across diverse installations. Its dual-element design with a 200 kAIC interrupt rating supports robust protection, while the 600 V rating and compact form factor deliver practical value for panel builders, integrators, and maintenance teams seeking uptime and cost efficiency.
Product Information
Extended Description
KTK-R-4/10 Eaton: Eaton Bussmann Series Class CC fuse, KTK-R, fast-acting, dual-element current limiting fuse, 0.4 A rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTK-R fuse
Catalog Number
KTK-R-4/10
UPC
051712420495
EAN
5027590445689
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
0.4 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-4/10
KTK-R Spec Sheet
KTK-R Spec Sheet
Feature: Current-limiting fast-acting Class CC fuse with a 0.4 A rating and 600 V operating voltage. Business Impact: Provides fast fault clearance, minimizes damage to downstream components, and reduces fuse replacement frequency in high-energy applications. Application: Ideal for industrial controls panels and small-motor circuits where rapid energy interruption is critical to protect electronics and minimize downtime. Feature: Dual-element construction with rejection style design. Business Impact: Improves selective coordination and reduces nuisance openings, lowering maintenance costs and extending equipment life. Application: Useful in compact control enclosures and modular machines where precise protection is required without sacrificing serviceability. Feature: Ferrule end terminations for secure, quick installation. Business Impact: Simplifies field wiring and reduces torque-related loosening, improving reliability in vibration-prone environments. Application: Common in street lighting controllers, distribution panels, and capacitor banks needing reliable, repeatable connections. Feature: High interrupt rating of 200 kAIC and CE/UL/CSA/RoHS certifications. Business Impact: Enhances protection against severe short circuits while ensuring regulatory compliance and traceability for audits. Application: Suitable for harsh industrial settings and equipment with stringent safety standards. Feature: Compact physical footprint (1.5 in length; 0.41 in width/height) and standard packaging of 10. Business Impact: Enables dense panel layouts and cost-efficient stocking without compromising protection. Application: Fits small control cabinets and retrofit projects where space is at a premium.
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FAQs
KTK-R-4/10 is a Class CC current-limiting fast-acting fuse with ferrule-end terminations, designed for industrial controls panels, street lighting, general lighting, capacitors, and distribution equipment. Its 0.4 A rating and 600 V voltage rating suit small control circuits while high interruption capability and dual-element design support reliable protection in dense switchgear layouts.
The KTK-R-4/10 is a current-limiting fast-acting fuse, with its precise time-current behavior defined by Eaton’s time-current curves. It clears faults quickly to minimize energy let-through, while its 200 kAIC interrupt rating provides robust protection during short-circuit events. For exact curves, consult the KTK-R datasheets and application notes.
Yes. The KTK-R-4/10 is specifically intended for industrial controls panels and machinery protection. Its 0.4 A rating, 600 V capability, and dual-element construction support selective protection, while its compact size and ferrule terminations simplify installation in space-constrained panels used in automation and process equipment.
The KTK-R-4/10 carries UL Listed and CSA Certified marks, along with CE marking and RoHS compliance. These certifications confirm safety, interoperability, and environmental compliance across North American and European markets, helping with regulatory audits and customer qualification processes.
The fuse measures 1.5 inches in length with a 0.41 inch width and 0.41 inch height and uses ferrule-end terminations. It is packaged in standard cartons with a quantity of 10 fuses per unit, enabling economical stocking and straightforward replacement in field deployments or retrofit projects.