Semiconductor Fuse 600 A 500V AC 500V DC A50QS Series Nonindicating Fast Acting Body Style Bolt-On Nonrejection Interrupt Rating 200kA at 500V AC 87kA at 500V DC Fuse Size 4-1/2 in L x 2 in dia Length 4 1/2 in Diameter 2 in Equivalent Brand and Series A50QS Bussmann FWH Littelfuse L50S Mersen A50P Equivalent Series A50P A50QS FWH L50S Body Material Fiberglass Single Element Standards CE UL Recognized Guide JFHR2 File 60314 CSA Certified LR12636