Semiconductor Fuse 1 600 A 500V AC 500V DC FWH-A Series Nonindicating Fast Acting Body Style Bolt-On Nonrejection Interrupt Rating 200kA at 500V AC Fuse Size 10-7/32 in L x 4-1/4 in dia Length 10 7/32 in Diameter 4 1/4 in Equivalent Brand and Series A50QS Bussmann FWH Littelfuse L50S Mersen A50P Equivalent Series A50P A50QS FWH L50S Compatible Fuse Block Series 1BS Body Material Fiberglass Single Element Standards CE CSA Certified UL Recognized