Eaton KTN-R-100 Fuse - Class RK1
Part Number: KTN-R-100
Quick Summary
KTN-R-100 fuse delivers fast-acting current protection for industrial control panels and motor circuits. Engineers often face nuisance tripping or inadequate protection that increases downtime; this device targets precise protection without over-blowing fuses. The datasheet lists Class RK1 and high interrupt ratings (200 kAIC at 250 Vac, 100 kAIC at 250 Vdc); note that common certifications like SIL, CE, and IP are often required by projects and should be verified on the application spec. Designed for reliable electrical protection and circuit control, it supports safer, more efficient power distribution across industrial environments. For procurement teams, the compact dimensions and compatible blade-end interfaces streamline panel retrofits and spare-part planning.
Product Information
Extended Description
KTN-R-100 Eaton: Eaton Bussmann Series Class RK1 fuse, KTN-R, fast-acting, current limiting fuse, 100 A, rejection style fuse, interrupting rating of 200 kA at 250 Vac and 100 kA at 250 Vdc
Product Name
Eaton Bussmann series KTN-R fuse
Catalog Number
KTN-R-100
UPC
051712407168
EAN
5027590446099
Product Length/Depth
1.2 in
Product Height
5.85 in
Product Width
1.2 in
Product Weight
0.3 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
100 A
Interrupt rating
100 kAIC at 250 Vdc 200 kAIC at 250 Vac
Voltage rating
250 Vac, 250 Vdc
Material
Melamine glass tube
Number of elements
1
Packaging type
Standard
Class
Class RK1
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Special features
70/30 brass end cap
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KTN-R 250 V Class R fuse data sheet no. 1043
Feature: KTN-R-100 is a Class RK1 fast-acting current-limiting fuse from Eaton Bussmann Series. Business Impact: Rapid fault isolation minimizes arcing energy, reducing equipment damage, downtime, and maintenance costs. Application: Control panels, motor starters, and power distribution feeders in manufacturing lines where dependable protection matters. Feature: High interrupt ratings of 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc. Business Impact: Withstanding severe short-circuit energy improves system resilience and extends component life. Application: AC mains and DC bus protection in industrial automation and energy-intensive machinery. Feature: 100 A amperage rating with a rejection-style design and 70/30 brass end caps. Business Impact: Reduces incorrect fuses from being installed, boosting reliability and simplifying spare-part inventories. Application: Panel retrofits and new builds where accurate part verification is critical. Feature: Blade end x blade end connections and a single internal element simplify installation and ensure consistent contact. Business Impact: Faster commissioning and fewer contact reliability issues in harsh environments. Application: Compact control cabinets and standard Bussmann layout environments. Feature: Physical form factor and standard packaging with melamine glass tube construction. Business Impact: Robust construction supports longer service intervals and lower replacement costs. Application: Routine stocking in service fleets and electronics rooms using Bussmann family fuses.
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FAQs
The KTN-R-100 uses blade end x blade end connections with a single internal element. Install into standard low-voltage panel cutouts that match the RK1 family footprint and ensure proper seating to maintain the specified 100 A rating and 200 kAIC/100 kAIC interrupt ratings.
Amperage rating: 100 A. Voltage rating: 250 Vac, 250 Vdc. Interrupt rating: 200 kAIC at 250 Vac and 100 kAIC at 250 Vdc. The device is a Class RK1 fuse with a current-limiting design.
Yes. It is rated for 250 Vdc with an interrupt rating of 100 kAIC, making it appropriate for DC protection in compatible circuits, provided the system design accounts for DC fault behavior and derating as required.
Common applications include electrical protection in control panels, motor protection circuits, and power-distribution feeders in manufacturing and automation environments, where fast-acting, reliable protection is essential.
Stock the KTN-R-100 alongside other RK1 fuses within the Bussmann series. Rely on the standard packaging and blade-end form factor to simplify replacements, and verify any project-specific certifications (UL/CSA/CE) per application requirements.