Eaton FRN-R-45 Fuse - RK5 Time-Delay, 45A, CE
Part Number: FRN-R-45
Quick Summary
The Eaton FRN-R-45 fuse provides time-delay circuit protection for motor and control circuits in industrial equipment. Nuisance trips from transient conditions can drive costly downtime, so this dual-element RK5 fuse helps tolerate brief surges while reliably interrupting sustained faults. CE marking supports regulatory compliance across global markets, and RoHS information is readily accessible through Eaton's compliance resources. The FRN-R-45 belongs to the Bussmann series, a robust RK5 family designed for reliability in panel-mounted protection, with ferrule-end connections that simplify field installation. For buyers, this fuse offers predictable protection, compact footprint, and compatible replacement in RK5-compatible panels, reducing inventory complexity while maintaining safety margins in electrical protection schemes.
Product Information
Extended Description
FRN-R-45 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 45 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-45
UPC
051712101790
Product Length/Depth
3 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
3.1 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
45 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
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
Time-delay, dual-element design provides selective protection for motor start-up and transient surges, reducing nuisance trips while preserving circuit integrity. This translates to lower downtime costs and improved equipment availability in variable-load environments, especially for conveyors, pumps, and HVAC drives. The 45 A rating with a 200 kAIC interrupt capability at 250 Vac and 20 kAIC at 125 Vdc ensures robust fault clearing in high-current scenarios, safeguarding downstream components and minimizing collateral damage in panel enclosures. Ferrule-end terminations and a compact 3 in length with 0.81 in width/height offer straightforward installation in tight control panels, enabling quick field replacement without specialized tooling. The non-indicating design reduces visual clutter in dusty or harsh environments, while CE compliance supports cross-border installation and regulator readiness. Compatible with RK5 fuses and Bussmann series inventories, FRN-R-45 helps standardize protection across multiple lines, simplifying procurement and maintenance planning. Industry-grade reliability, documented electrical ratings, and a proven form factor address common objections about replacement parts compatibility and lifecycle cost.
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FAQs
Yes. The FRN-R-45 is designed as a Class RK5 dual-element fuse with ferrule-end terminations, matching RK5 holders and standard Bussmann-series panel interfaces. It mounts in compatible RK5 frames, supports 45 A ratings, and uses ferrule-end connections for secure, quick-terminals. Ensure the holder’s voltage and current ratings align with 250 Vac operation and the attached equipment’s inrush characteristics.
FRN-R-45 provides a 45 A current rating with an interrupting rating of 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc. It supports a 250 Vac and 125 Vdc operating range, with a time-delay response around 10 seconds at 500% overload for controlled clearing of overloads in motor and drive circuits.
Yes. The dual-element, time-delay design is specifically suited for motor protection and control circuits within panelboards and motor starters. Its RK5 class and 3 inch body size offer a compact solution with reliable surge tolerance, helping to reduce nuisance trips while still protecting downstream devices during fault conditions.
FRN-R-45 is CE marked to support regulatory compliance in many markets. While CS/UL listings aren’t stated in the provided data, the CE marking confirms conformance with European safety requirements. For customers needing RoHS information, Eaton provides a RoHS search tool to verify material compliance for your region and project requirements.
The FRN-R-45’s time-delay operation minimizes nuisance trips, improving machine uptime and operator productivity. Its ferrule-end design reduces installation time and waste in field replacements, while the durable RK5-class construction supports longer service life in demanding environments. By standardizing on a single RK5 family and compatible catalog data, procurement and stocking costs decrease, delivering a favorable total cost of ownership.