Fuse Block Fits Fuse Type High Speed Semiconductor Fuse UL Class Not Class Rated 0 to 30 A Number of Poles 3 700V AC/DC For Fuse Size Various Compatible Fuse Series A30QS A50P A50QS A70P A70QS FWH FWP FWX L25S L50S L70QS Series 1976 Nonindicating Nonrejection Fuse Block Design Open Mounting Style Bolt-Down Body Material Ceramic Connector Type Screw Height 1.5 in Width 4 in Length 3.25 in