Eaton KTN-R-6 Fuse - Class RK1, 250 V Current-Limiting
Part Number: KTN-R-6
Quick Summary
The Eaton KTN-R-6 fuse provides fast-acting current-limiting protection for low-voltage circuits in control panels and machine assemblies. This helps minimize downtime by swiftly interrupting fault currents and preventing collateral damage. While RK1 class protection is common in industrial gear, RoHS-compliant materials and broad safety practices enable reliable global installations where applicable. This compact fuse combines a robust 6 A rating with a 250 V capability, offering a practical balance of protection and space efficiency for panel builders and machine OEMs. In short, it supports faster setup, easier replacement, and consistent protection across automation architectures.
Product Information
Extended Description
KTN-R-6 Eaton: Eaton Bussmann Series Class RK1 fuse, KTN-R, fast-acting, current limiting fuse, 6 A, rejection style fuse, interrupting rating of 200 kA at 250 Vac
Product Name
Eaton Bussmann series KTN-R fuse
Catalog Number
KTN-R-6
UPC
051712407021
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.1 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
6 A
Voltage rating
250 V
Material
Melamine glass tube
Number of elements
1
Packaging type
Standard
Class
Class RK1
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
With minimal time delay
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KTN-R 250 V Class R fuse data sheet no. 1043
Feature: Fast-acting, current-limiting Class RK1 design. Benefit: Reduces fault current energy and minimizes arc-related damage, improving equipment uptime and protecting critical control circuits in automation environments. Application: Optimal for motor controllers and PLC power rails in control panels where quick clears are essential. Feature: 6 A, 250 V electrical rating. Benefit: Safe operation within standard low-voltage industrial circuits while delivering selective protection, reducing nuisance trips. Application: Ideal for power distribution blocks and automation module feeds. Feature: Interruption rating of 200 kA at 250 VAC. Benefit: High fault tolerance in panels fed from robust power sources, enabling reliable protection in high-energy applications. Application: Main feeders and machinery power rails in manufacturing lines. Feature: Ferrule end x ferrule end connections. Benefit: Fast, secure wiring with reliable contact and simplified replacement during maintenance. Application: Standard Bussmann RK1 fuse holders and harnesses. Feature: Melamine glass tube with a single element. Benefit: Durable, heat-resistant construction and predictable performance with minimal time delay. Application: Compact fuse installations in space-constrained panels. Feature: Non-indicating fuse with standard packaging. Benefit: Lower cost and straightforward replacement in routine maintenance programs. Application: Retail and OEM service environments where indications are not required. Feature: Overall compact dimensions (2 in length; 0.56 in x 0.56 in). Benefit: Space savings inside crowded control enclosures, enabling denser bus and wiring layouts. Application: Panel assemblies with limited mounting depth and width. Feature: 1-element design. Benefit: Simple, reliable protection without complex fault indicators that could fail in harsh environments. Application: Standard low-voltage protection in automation gear. This combination of features and practical benefits supports measurable outcomes such as reduced downtime, improvedPanel protection, and streamlined maintenance workflows.
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FAQs
KTN-R-6 uses ferrule-end connections and is designed for standard RK1 fuse holders used in Eaton Bussmann and other RK1-compatible panels. Its 2 inch length and 0.56 inch cross-section fit typical low-profile enclosures, making installation straightforward in control panels and automation racks.
The KTN-R-6 is a 6 A, 250 V fast-acting, current-limiting fuse with a 200 kA interrupting rating at 250 VAC. It has a single element housed in a melamine glass tube, with non-indicating operation and a standard ferrule-to-ferrule end connection.
It is well-suited for low-voltage control circuits in industrial automation, such as PLC power feeds, motor control panels, and power distribution blocks within manufacturing environments where compact form factor and quick fault clearance matter.
The provided data does not list explicit certifications. In practice, RK1 fuses are commonly aligned with RoHS material compliance and safety listings where applicable; panel builders often pursue UL/CSA safety recognition and CE/UKCA readiness. Always consult the datasheet (Bus Ele 1043) for the latest certification details.
By delivering rapid fault clearance in a compact package, the KTN-R-6 reduces downtime and minimizes collateral damage during faults. Its simple, ferrule-based wiring and standard form factor streamline replacements, lowering maintenance time and preserving uptime for automated lines and busy production environments.