Fuse 4/10 A 600V AC 300V DC Class RK5 FRS-R Series Nonindicating Time Delay Body Style Cylindrical Fits Fuse Block Style Rejection Interrupt Rating 200kA at 600V AC 20kA at 300V DC Fuse Size 5 in L x 13/16 in dia Length 5 in Diameter 13/16 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