Bussmann FRN-R-40 Fusetron Time Delay Fuse is a 40 Amp, 250 VAC time-delay fuse (slow-blow) in the FRN-R-40 series. Classified as RK5, this Bussmann device provides overcurrent protection for 250 VAC circuits and is designed to tolerate brief current surges without nuisance tripping. Use this FRN-R-40 fuse to protect electrical wiring and equipment in 250 VAC systems that require a 40 A, Class RK5 protection device.
