The Bussmann Fusetron ACK-300 Dual Element Fuse is a high-quality electrical fuse designed for interior use in electrical equipment and supplies. With a tripping characteristic of Type A and a time-delay/slow-blow fuse speed, this bolt-on fuse provides reliable protection for your electrical systems. Made of copper with a horizontal/vertical orientation, this single-phase fuse is suitable for a variety of industrial applications. Manufactured in the United States by the trusted brand Bussmann, this fuse is an essential component for ensuring the safety and functionality of your electrical systems.