Bussmann FRN-R-1 Fuse

The Bussmann FRN-R-1 Fuse is a Fusetron dual-element, time-delay Class RK5 fuse from Eaton's Bussmann series. It is rated 1 A and designed for operation at 250 VAC or 125 VDC, with interrupting ratings of 200 kA at 250 VAC and 20 kA at 125 VDC. This non-indicating fuse belongs to the FRN-R family of Class RK5 devices and provides current-limiting protection in RK5 circuits. Built for reliability, it uses a dual-element design and is sized for a 1-amp variant within the FRN-R RK5 lineup, making it suitable for protecting smaller loads and control circuitry in equipment and panel assemblies where coordinated protection is required. The FRN-R series is part of Bussmann's legacy of RK5 fuses, offering consistent performance in environments that use Class RK5 protection for electrical distribution and control applications. The FRN-R-1 variant specifically provides 1 A protection within the RK5 family.