Eaton FRN-R-80 Fuse - RK5 Time-Delay, 200 kAIC @ 250 Vac
Part Number: FRN-R-80
Quick Summary
The Eaton FRN-R-80 fuse is a time-delayed, dual-element protection device for electrical panels, machines, and motor drives. End users face nuisance tripping during faults or inrush, which leads to unnecessary downtime and maintenance costs. This fuse is CE marked and designed to the RK5 class, offering reliable protection with an 80 A rating and a 200 kAIC interrupt rating at 250 Vac. Its blade-end package supports quick field swaps, enabling faster service and reduced downtime. Ideal for industrial automation and motor control applications, it delivers scalable protection while aligning with Bussmann RK5 compatibility and standard-fused form factors.
Product Information
Extended Description
FRN-R-80 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 80 A, non-indicating fuse, interrupting rating of 200 kA at 250 Vac
Product Name
Eaton Bussmann series FRN-R fuse
Catalog Number
FRN-R-80
UPC
051712507417
Product Length/Depth
5.88 in
Product Height
1 in
Product Width
1 in
Product Weight
0.3 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
80 A
Interrupt rating
200 kAIC at 250 Vac 20 kAIC at 125 Vdc
Response time
10 sec at 500%
Voltage rating
250 Vac, 125 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Fusetron FRN-R RK5 fuse data sheet for fuses 70 to 600 amps No. 1020
Time-delay, dual-element design provides selective protection, limiting nuisance trips while still clearing faults at the right time, reducing downtime and extending equipment life. Business impact: improved uptime and lower maintenance costs. Application: machine controls, conveyors, and automated panels where inrush and temporary surges occur. 80 A current rating with a 200 kAIC interrupt rating at 250 Vac ensures robust protection for high-energy faults, minimizing conductor damage and arc exposure. Business impact: enhanced safety and reduced repair expenses. Application: motor drives, CNC tooling, and robotics in manufacturing environments. Blade-end x blade-end connections and standard 5.88 in length simplify retrofit and replacement, lowering installation time and part-number confusion. Business impact: faster maintenance cycles and predictable procurement. This FRN-R-80 is CE marked and Class RK5, aligning with European compliance and industry-standard coordination. Application: EU facilities and multi-vendor panels. Non-indicating indicators reduce diagnostic clutter, supporting clean panel aesthetics and simplified maintenance. Business impact: reduced downtime during inspections and safer, more reliable installations. Compatibility with Bussmann RK5 fuse families enhances protection coordination across panels and feeders. Application: control panels and machine tool safeguards in automation systems.
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FAQs
For FRN-R-80 installations, verify blade-end x blade-end connections and ensure compatibility with RK5 fuse holders. The 5.88 inch length and 1 inch width fit standard RK5-style sockets, enabling straightforward retrofit into existing control panels. Use the 80 A rating to coordinate with downstream protection schemes and avoid nuisance trips by matching the fuse to the circuit’s inrush and fault currents.
FRN-R-80 provides 80 A amperage rating with a 200 kAIC interrupt rating at 250 Vac and a 10 second response time at 500% overload. It is a time-delay, dual-element current-limiting fuse in the RK5 class, designed for selective protection in industrial control panels and motor systems, with a 125 Vdc rating option and blade-end connections for quick swaps.
Yes. The 80 A, 200 kAIC@250 Vac rating supports motor drives and machine tools by providing fast fault clearance while allowing deliberate inrush and startup surges. Its RK5 class design and blade-end connection make it compatible with common MCC and machine tool panel architectures, helping achieve proper coordination with neighboring fuses and controllers.
FRN-R-80 is CE marked, aligning with European safety and deployment requirements. It belongs to the Class RK5 family of fuses, offering recognized performance characteristics and standard packaging. While RoHS tooling is available for compliance checks, the core specification highlights CE compliance and RK5 classification for multi-vendor panel coordination.
The dual-element design reduces nuisance tripping, improving uptime and reducing maintenance interrupts. With a high interrupt rating, it protects conductors and equipment from fault currents, lowering repair costs and downtime. Its non-indicating nature simplifies visual inspection, while blade-end connectivity enables quick replacements, delivering faster maintenance turnaround and predictable component pricing.