Eaton BK/FRN-R-1/2 fuse - Class RK5 CE Marked
Part Number: BK/FRN-R-1/2
Quick Summary
The Eaton BK/FRN-R-1/2 fuse provides current-limiting, time-delay protection for motor circuits and control panels. Engineers often struggle with nuisance trips and downtime caused by transient faults or misapplied protection. CE Marked compliance follows industry directives, and the fuse is classified as RK5 with a robust dual-element design suitable for motor overload, ground fault, and short-circuit protection. This solution aligns with electrical protection and circuit control objectives, delivering reliability, reduced maintenance, and lower total cost of ownership for panel builders and OEMs.
Product Information
Extended Description
BK/FRN-R-1/2 Eaton: Eaton Bussmann series FRN-R fuse, Current-limiting time-delay fuse, Motor overload, Ground fault and short-circuit protection, 0.5 A, Dual, 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-1/2
UPC
051712411462
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
0.5 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-1/2~BK-FRN-R-1-2~FUSETRON DUAL-ELEMENT
BK/FRN-R-1/2~BK-FRN-R-1-2~FUSETRON DUAL-ELEMENT
Bussmann series Fuseology
Eaton Specification Sheet - BK/FRN-R-1/2
Feature → Business Impact → Application: The FRN-R dual-element design delivers reliable current limiting and time-delay response, reducing peak fault currents and protecting sensitive motor windings, decreasing wear and downtime in automated lines. This translates to lower maintenance costs and longer motor life in OEM equipment and production cells, especially in high-startup current applications. Feature → Business Impact → Application: 0.5 A amperage rating matches small motor drives and control circuits, enabling precise protection without nuisance tripping during normal startup transients in conveyors and packaging lines. Feature → Business Impact → Application: Interrupt ratings of 200 kAIC at 125 Vdc and 250 VAC provide robust protection against short circuits in industrial panels, supporting safer equipment and faster fault clearance in machine bays. Feature → Business Impact → Application: Time-delay operation (8 seconds at 500%) accommodates motor startup surges, avoiding false trips on variable-frequency drives and hydraulic systems in packaging and fabrication environments. Feature → Business Impact → Application: Bulk packaging and RK5 class designation streamline stocking, installation, and replacement in service environments, reducing downtime when fuses need replacement during preventive maintenance. Feature → Business Impact → Application: Non-indicating, dual-element construction supports quick inspection by maintenance staff and ensures consistent protection across consolidated control cabinets, improving reliability in multi-drive architectures.
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FAQs
Yes. The BK/FRN-R-1/2 is a 2 in length, 0.56 in square footprint dual-element RK5 fuse designed for standard electrical protection in control cabinets and motor starters. It supports bulk-bulk packaging and standard panel mounting practices, making it straightforward to replace in existing RK5-based installations without reconfiguring panel layouts.
The fuse is rated for 0.5 A, with voltage ratings of 250 VAC and 125 Vdc. It provides a 200 kAIC interrupt rating at both stated voltages and a response time of 8 seconds at 500% overcurrent, making it suitable for motor overload and short-circuit protection in industrial circuits.
Yes. It delivers current-limiting, time-delay protection ideal for motor overload protection and control-panel safety. The dual-element design and RK5 class are well-suited for standard motor drives, ensuring reliable protection during startup surges and fault conditions while minimizing nuisance trips.
The fuse is CE marked, indicating compliance with applicable European safety directives. While UL or other certifications are not listed in the provided data, the CE marking supports conformity to essential health and safety requirements for many industrial applications.
Because it is bulk-packaged and non-indicating, routine replacement can be streamlined in high-volume environments. The bulk packaging reduces stocking costs, while the 2-in length and RK5 form factor ensure compatibility with standard industrial enclosures. Maintenance teams should verify the 0.5 A rating aligns with the protected load and monitor for any signs of fault current to prevent downstream equipment damage.