Bussmann FRS-R-110 Dual Element Time Delay Fuse

The Bussmann FRS-R-110 is a 110 A dual-element, time-delay fuse from the FRS-R family, designed for UL Class RK5 protection in 600 VAC / 300 VDC circuits. This non-indicating cartridge fuse provides current-limiting protection with an interrupting rating of 200 kA at 600 VAC and 20 kA at 300 VDC, and its dual-element construction handles temporary overloads while guarding equipment from faults. With a 600 V class rating and a cartridge body compatible with standard RK5 holders, the FRS-R-110 is commonly referenced in literature as a Bussmann Fusetron fuse. The 110 A rating places it in the upper-mid range for RK5 fuses, enabling protection of medium-to-high-current circuits in industrial power distribution and controls where reliable time-delay protection is essential and brief inrush currents are expected.