Fuse 50 A 250V AC 125V DC Class RK5 FRN-R Series Nonindicating Time Delay Body Style Cylindrical Fits Fuse Block Style Rejection Interrupt Rating 200kA at 250V AC 20kA at 125V DC Fuse Size 3 in L x 13/16 in dia Length 3 in Diameter 13/16 in Equivalent Brand and Series Bussmann FRN-R Edison ECNR Littelfuse FLNR Mersen TR-R Equivalent Series ECNR FLNR FRN-R TR-R Compatible Fuse Block Series HM600 R250 Body Material Fiberglass Dual Element