The BK/AGC-1-3/4-R is a fast-acting, glass tube fuse from the AGC Series manufactured by Cooper Bussmann, featuring a 1/4" x 1-1/4" (6.3 mm x 32 mm) physical size with nickel-plated brass endcap construction. This fuse is rated for 250V AC with an AC interrupting rating of 100A at 125V and 10,000A at 250V, providing reliable overcurrent protection. The fuse exhibits fast-acting characteristics with a typical DC cold resistance of 0.145 ohms and a typical melting I²t of 0.018 AC, ensuring rapid response to fault conditions. It meets UL standard 248-14 and is RoHS compliant, making it suitable for industrial control systems, power distribution equipment, and consumer electronics requiring certified circuit protection.