Fuse, 600 A, 600V AC, 300V DC, Class RK5, FRS-R Series, Nonindicating, Time Delay, Body Style Blade, Fits Fuse Block Style Rejection, Interrupt Rating 200kA at 600V AC, 20kA at 300V DC, Fuse Size 13-3/8 in L x 2-7/8 in dia, Length 13 3/8 in, Diameter 2 7/8 in, Equivalent Brand and Series Bussmann FRS-R, Edison ECSR, Littelfuse FLSR, Mersen TRS-R, Equivalent Series ECSR, FLSR, FRS-R, TRS-R, Compatible Fuse Block Series 1BR, R600, Body Material Fiberglass, Dual Element