Eaton FRN-R-25 fuse – Class RK5, 200 kAIC @250V
Part Number: FRN-R-25
Quick Summary
FRN-R-25 fuse is a time-delay, dual-element protection device designed for industrial control circuits. Engineers often wrestle with nuisance trips and mismatched interrupt ratings when protecting motors, drives, and control panels in harsh environments. Part of the Eaton Bussmann RK5 family, it carries CE marking and a rugged interrupt rating of 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc, with a 25 A current rating. The combination of a compact 2 in length, ferrule-end terminals, and a non-indicating design supports straightforward installation and robust field service. This setup helps reduce downtime, improves uptime availability, and simplifies spare-part logistics for panel builders and machine OEMs.
Product Information
Extended Description
FRN-R-25 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 25 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-25
UPC
051712507332
Product Length/Depth
2 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.05 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
25 A
Interrupt rating
20 kAIC at 125 Vdc 200 kAIC at 250 Vac
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
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 enables current-limiting protection that tolerates temporary inrush while shielding circuits from sustained faults, reducing nuisance trips and safeguarding motor control. Business impact: fewer unplanned outages and smoother startup sequences in drives and panels; Application: installation in industrial control panels and motor circuits for reliable protection. Feature → Class RK5, current-limiting 25 A with high interrupt ratings, and CE compliance provide robust coordination with upstream devices. Business impact: improved selective coordination and regulatory conformity; Application: machine safety enclosures and power distribution blocks where certifiable protection is required. Feature → Ferrule-end x ferrule-end connections, 2 in length, and non-indicating operation simplify installation and maintenance. Business impact: faster replacements, standardized parts, and reduced assembly time; Application: panel assemblies in compact enclosures. Feature → 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc delivers strong fault protection. Business impact: enhanced safety margins and reduced downstream damage; Application: high-energy circuits in industrial equipment. Feature → 25 A rating with RK5 family compatibility ensures consistent performance across Bussmann RK5 fuses. Business impact: streamlined spare parts and predictable protection schemes; Application: modular protection schemes in control cabinets and process lines.
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FAQs
FRN-R-25 uses ferrule-end connections to simplify panel terminations. Ensure you are using the RK5-compatible holder, insert the fuse with correct ferrule orientation, and mount in a standard 2 inch body space. Maintain proper clearance for heat dissipation, and rely on system diagnostics for confirmation since this fuse is non-indicating.
FRN-R-25 employs a dual-element construction that tolerates brief inrush currents (time-delay) while providing rapid interruption during sustained faults. This reduces nuisance trips on motors and drives while delivering current-limiting protection to downstream equipment, aligning with RK5 short-circuit coordination in typical industrial circuits.
Yes. FRN-R-25 is rated for 250 Vac and 125 Vdc, with an interrupt capability of 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc. This makes it suitable for mixed-voltage panel protection where both AC and DC fault protection is required in industrial control assemblies.
FRN-R-25 provides 200 kAIC interrupt rating at 250 Vac and 20 kAIC at 125 Vdc. These figures indicate the maximum fault current the fuse can interrupt without delaying or fusing, ensuring protection for feeders and devices in high-energy circuits and enabling safer shutdown of equipment during faults.
Datasheets and catalogs are accessible through Eaton’s Bussmann resources: the Bussmann Full Line Catalog and the FRN-R RK5 data sheet (bus-ele-ds-1019-frn-r-1-10-60a.pdf) provide detailed spec tables. For broader reference, use the RoHS tool and product catalogs linked in the downloads section.