Cooper Bussmann FRS-R-60 Fusetron RK5 Cartridge Fuse

The Cooper Bussmann FRS-R-60 Fusetron RK5 cartridge fuse is a 60 A protection device rated for 600 VAC and 250 VDC in the Bussmann Series Class RK5 family. It is a dual-element time-delay (Fusetron) fuse that is current-limiting and non-indicating, designed to tolerate brief inrush currents while reliably interrupting faults. It carries an interrupting rating of 200 kA at 600 VAC and 20 kA at 250 VDC, making it suitable for high-fault-current environments in 600 VAC power circuits. Classified as UL Class RK5, the FRS-R-60 is intended for protection in industrial electrical panels and equipment powered from 600 VAC lines where a precise 60 A protection level is required and nuisance trips must be minimized.