The BK/MDL-6-R is a 6-ampere time-delay glass tube fuse designed for circuit protection in electrical systems. It features a 1/4" x 1 1/4" (6.4 x 31.7 mm) physical size with a glass tube construction and nickel-plated brass endcaps, rated for 250V AC with a 200-amp AC interrupting rating. The fuse exhibits a typical DC cold resistance of 10,000 O, a melting I²t of 0.025 A²sec, and a typical voltage drop of 0.160V at rated current. It meets UL Listed standard 248-14 and is RoHS compliant, with optional axial leads available. This fuse is commonly used in industrial control circuits, power distribution systems, and electronic equipment where reliable time-delay protection and precise current interruption are required.