Bussmann Fusetron™ Time Delay Fuse, Current Limiting, Series: FRN-R, Non-Indicating, Rejection, 450 A, 250 VAC/250 VDC, 200/20 kA Interrupt, Class: RK5, 10 sec Response, Knife Blade Terminal, Holder Mount, Cartridge Body, Dual Element, Fiberglass, 2.88 in Dia x 10.38 in L Body Size