Eaton BK/FRN-R-1 Fuse - Class RK5 CE Marked
Part Number: BK/FRN-R-1
Quick Summary
The Eaton BK/FRN-R-1 fuse delivers reliable current-limiting protection for motors and control circuits in industrial environments. This design helps prevent nuisance trips and equipment damage caused by overloads, short circuits, and ground faults. With CE marking, Class RK5 certification, and a dual-element configuration, it supports compliant, robust protection while reducing downtime. For panel builders and OEMs, bulk packaging and a compact form factor streamline stocking, installation, and maintenance, delivering consistent protection across multiple machines and lines.
Product Information
Extended Description
BK/FRN-R-1 Eaton: Eaton Bussmann series FRN-R fuse, Current-limiting time-delay fuse, Motor overload, Ground fault and short-circuit protection, 1 A, Dual, Class RK5, Non-indicating, 8 sec at 500%, 200 kAIC at 250 V, 200 kAIC at 125 Vdc, Bulk, 250 V, 125 Vdc
Product Name
Eaton Bussmann series FRN-R fuse
Catalog Number
BK/FRN-R-1
UPC
051712411479
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
Catalog Notes
Bulk
Amperage Rating
1 A
Interrupt rating
200 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 Bulk
Class
Class RK5
Fuse indicator
Non-indicating
Special features
Rejection style
BK/FRN-R-1~BK-FRN-R-1~FUSETRON DUAL-ELEMENT
BK/FRN-R-1~BK-FRN-R-1~FUSETRON DUAL-ELEMENT
Bussmann series Fuseology
Eaton Specification Sheet - BK/FRN-R-1
Feature → The BK/FRN-R-1 is a current-limiting time-delay fuse with a dual element configuration. Business Impact → It enables selective coordination and safer fault clearing, reducing downtime and downstream damage in motor circuits. Application → Motor drives, conveyors, and pumps requiring reliable protection without nuisance tripping. Feature → 1 A amperage rating with 250 Vac and 125 Vdc voltage ratings. Business Impact → Precise protection for low to medium horsepower motors and control circuits, minimizing wasted trips and component wear. Application → Panel integrators and control cabinets in manufacturing lines. Feature → 200 kAIC interrupt rating at both 125 Vdc and 250 Vac. Business Impact → High fault current resilience, safer shutdown sequences, and extended equipment life. Application → Heavy-duty industrial environments with high short-circuit potential. Feature → Rejection style, non-indicating, Class RK5 fuse. Business Impact → Clear fault indication through system behavior while maintaining simplicity in installation and maintenance. Application → Standardized protection across multiple machines with bulk procurement.
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FAQs
The BK/FRN-R-1 is designed for standard bulk-packaged fuse bases used in Eaton Bussmann FRN-R installations. Its 2 in length with 0.56 in width and 0.56 in height fits common compact fuse-switch bases and panel rails, simplifying upgrades and retrofits while preserving safe, reliable motor protection in control panels.
The fuse carries a 1 A amperage rating with 250 Vac and 125 Vdc voltage ratings. It provides a 200 kAIC interrupt rating at both 125 Vdc and 250 Vac, and a response time of 8 seconds at 500% overload, ensuring rapid fault clearance for motors and drives while protecting upstream circuitry.
Yes. The dual-element, current-limiting FRN-R design targets motor overload and short-circuit protection with a Class RK5 characteristic. It offers reliable protection in small to mid-size motors, reducing wear, nuisance trips, and downtime in machine tools, pumps, and conveyors when used in compatible Eaton bases.
BK/FRN-R-1 is CE marked, signaling compliance with European safety standards. The RK5 class and non-indicating style support standard industrial protection schemes, while bulk packaging aids sourcing across regulated facilities and assists with documentation during audits and maintenance planning.
Bulk packaging ensures ready availability of FRN-R units without frequent ordering, reducing downtime during replacements. The standardized 2 in length and bulk catalog notes align with common stocking practices, enabling faster maintenance, consistent part numbers across fleets, and improved total cost of ownership in high-usage environments.