Fuse Block Fits Fuse Type Telecom Protection Fuse UL Class Not Class Rated 70 to 800 A Number of Poles 1 60V DC For Fuse Size 3 1/2 in L x 1 1/2 in dia Compatible Fuse Series TPL Series 15000 Nonindicating Nonrejection Fuse Block Design Covered Wire Range 3/0 AWG to 350 MCM Mounting Style Threaded with Locknut