Eaton FRN-R-1/2 Fuse - 200 kAIC at 250 Vac - RK5
Part Number: FRN-R-1/2
Quick Summary
The Eaton FRN-R-1/2 fuse provides reliable time-delay protection for motor and control circuits in industrial equipment. Engineers often contend with nuisance trips and short-cycle faults that disrupt production; this fuse is designed to minimize unnecessary interruptions while safeguarding downstream equipment. It carries CE marking and belongs to the RK5 fuse class, delivering a known safety and performance profile in European and global panels. In addition to safety, the dual-element, current-limiting design offers predictable clearing behavior for motor starters and control relays, with a compact 2 in length and ferrule-end terminations that simplify panel assembly and replacement. This makes it a practical choice for OEMs seeking dependable protection with easy installation.
Product Information
Extended Description
FRN-R-1/2 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 0.5 A, non-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-1/2
UPC
051712507059
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
0.5 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
Connection
Ferrule end x ferrule 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 up to 60 amps No. 1019
Feature → Business Impact → Application: The FRN-R-1/2 is a time-delay, dual-element current-limiting fuse that tolerates temporary inrushes common in motor start-up, reducing nuisance trips while preserving circuit protection. This translates to lower maintenance downtime and improved equipment uptime in manufacturing lines and packaging systems. Application insight shows it fits standard RK5 Bussmann series configurations with ferrule ends, enabling rapid replacement during preventive maintenance without specialized tools. Feature → Business Impact → Application: With a 0.5 A rating and a 250 Vac / 125 Vdc voltage rating, it protects control circuits and low-voltage drives while delivering a high interrupt rating of up to 200 kAIC at 250 Vac. The result is robust short-circuit protection in panelboards and control cabinets, helping prevent downstream damage and costly outages. Feature → Business Impact → Application: The compact 2 in length and non-indicating design simplify installation in tight enclosures, reducing cabinet space requirements and enabling quick visual checks during maintenance. In practice, technicians appreciate consistent performance in RK5 layouts with ferrule-end connections, making stock replenishment straightforward and downtime minimal. Feature → Business Impact → Application: The FRN-R-1/2’s compatibility with Bussmann RK5 fuse holders supports standardized procurement across multiple projects, lowering total cost of ownership and facilitating scalable protection across an equipment fleet. Industry insight indicates that time-delay fuses like FRN-R-1/2 improve selectivity in circuits with motors and relays, while maintaining compliance with European safety expectations through CE marking.
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FAQs
FRN-R-1/2 is designed for standard RK5 Bussmann series holders with ferrule-end terminations. It measures 2 inches in length with a 0.56 inch width and height, and weighs about 0.5 lb, enabling straightforward replacement in control panels and compact enclosures.
The fuse provides a 0.5 A amperage rating, voltage ratings of 250 Vac and 125 Vdc, and an interruption rating of 200 kAIC at 250 Vac (20 kAIC at 125 Vdc). It is time-delay and dual-element, offering reliable protection for motor and control circuits.
Yes. Its RK5 class, time-delay, dual-element current-limiting design suits motor starters and control panels, delivering selective protection while tolerating inrush currents during motor start-up and reducing nuisance trips.
The FRN-R-1/2 is CE marked, aligning with European safety standards. It belongs to the Class RK5 fuse family, ensuring compatibility with standard European protective equipment and predictable performance in control circuits.
The dual-element design minimizes nuisance trips, reducing unexpected downtime. Its high interrupt rating protects equipment more effectively, while the ferrule-end, compact form simplifies replacements and stocking, delivering lower maintenance costs and faster service in an industrial setting.