Eaton FRN-R-8ID Fuse -RK5 Time-Delay, 8 A, 250 Vac, 200 kAIC
Part Number: FRN-R-8ID
Quick Summary
FRN-R-8ID is a time-delay, dual-element fuse protecting industrial control circuits in panel and machine applications. In practice, startups and inrush events can trigger nuisance trips that interrupt production; this fuse mitigates that risk with a durable time-delay characteristic while maintaining strong overload protection. It carries CE marking, aligning with European safety requirements, and belongs to the Class RK5 family, a widely adopted standard for reliable circuit protection. With an 8 A rating and a high interrupt rating of 200 kAIC at 250 Vac (and 20 kAIC at 125 Vdc), it isolates faults quickly yet tolerates momentary surges. Its compact 3 in length, standard packaging, and indicator option help with straightforward installation and fault diagnosis within Eaton Bussmann catalogs.
Product Information
Extended Description
FRN-R-8ID Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 8 A, indicating fuse, interrupting rating of 200 kA at 250 Vac and 20 kA at 125 Vdc
Product Name
Eaton Bussmann series FRN-R fuse
Catalog Number
FRN-R-8ID
UPC
051712204323
Product Length/Depth
3 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.32 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
8 A
Interrupt rating
200 kAIC at 250 Vac 20 kAIC at 125 Vdc
Response time
8 sec at 500%
Voltage rating
250 Vac, 125 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Fuse indicator
Non-indicating With Indicator
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Fusetron FRN-R RK5 fuse data sheet for up to 60 amps No. 1019
Feature: Time-delay, dual-element design. Benefit: Reduces nuisance trips during motor start-up and inrush, enabling smoother equipment starts and less unscheduled downtime. Application: Control panels, motor starters, drives in manufacturing environments. Feature: 8 A rating with high interrupt rating. Benefit: Protects sensitive circuits while delivering fast fault clearance at 250 Vac, minimizing damage to power electronics. Application: Equipment power rails, PLC power supplies. Feature: DC fault protection with 20 kAIC at 125 Vdc. Benefit: Safe operation in mixed-technology panels and DC bus applications. Application: Servo drives, DCリンク protection. Feature: Indicator variant and compact form factor. Benefit: Easy fault diagnosis and efficient installation in crowded enclosures. Application: Panel builders, OEMs stocking within standard catalogs for quick replacements. Feature: CE marking and RK5 class compliance. Benefit: Regulatory alignment and interchangeable protection across Eaton Bussmann datasheets. Application: European projects and standardized installation across facilities.
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FAQs
FRN-R-8ID is compatible with standard control panel enclosures and Bussmann RK5 family fixtures. Its 3 inch body and standard packaging simplify tray or rail mounting in electrical cabinets. The indicating option helps technicians identify a blown fuse quickly during routine maintenance. The part integrates with Eaton Bussmann Full Line catalogs and is accessible through typical distributors for fast re-stocking.
It uses a time-delay dual-element design to tolerate inrush while still interrupting sustained faults. With an 8 A rating and a 200 kAIC interrupt rating at 250 Vac, it protects motors and power supplies without nuisance trips, reducing wear and downtime. It also supports 125 Vdc circuits with a 20 kAIC rating, offering DC fault protection in mixed-technology panels.
RK5 fuses combine current-limiting performance with standardization; FRN-R-8ID belongs to that class, providing predictable clearing for overloads and compatibility with common Bussmann/Eaton data sheets. This enables easier design, stocking, and maintenance across OEMs and panel builders. The high interrupt rating improves safety in protective schemes for machines and conveyors.
Yes, FRN-R-8ID is CE marked, indicating compliance with applicable European safety directives. RoHS compliance can be verified via Eaton's RoHS Search Tool, ensuring the fuse meets restrictions for hazardous substances. This combination supports international deployments and reduces regulatory risk on cross-border projects.
Using FRN-R-8ID can reduce maintenance costs by lowering nuisance trips and extending component life through controlled fault isolation. The robust interrupt ratings and 8 A load capacity align with motor drives and control circuits, delivering improved uptime and predictable replacement intervals when paired with standard catalogs and fast sourcing.