Bussmann FRS-R-2-8 Fusetron Time Delay Fuse RK5

The Bussmann FRS-R-2-8 Fusetron is a dual-element, time-delay fuse in the Class RK5 family, designed for 600 V AC circuits and current-limiting protection. This variant is rated at 2.8 A and ships in a 10-fuse pack, making it a practical choice for stocking in panel boards and control circuits that require reliable protection against temporary inrush. As part of the Fusetron line, it features a time-delay element that tolerates short overloads while rapidly interrupting faults, with an interrupting rating up to 200 kA at 600 VAC. The RK5 designation ensures compatibility with Bussmann RK5 fuse holders and related enclosures, and the FRS-R family is commonly used in motor controllers, power supplies, and other 600 VAC applications where brief surges occur but fast protection is still essential.