Fuse, 40 A, 250V AC, 250V DC, Class RK5, TR-R Series, Nonindicating, Time Delay, Body Style Cylindrical, Fits Fuse Block Style Rejection, Interrupt Rating 200kA at 250V AC, 20kA at 250V 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 2HKRFB, Body Material Polyester, Dual Element, Standards CSA, UL