The Mersen AJT300 fuse, manufactured by Ferraz Shawmut, has a maximum amperage of 300A and a voltage rating of 600V. This brand new product is designed for use in electrical equipment and industrial applications, providing efficient protection against overloads and short circuits. With its high current rating and reliable brand name, the Mersen AJT300 fuse is a valuable tool for ensuring the safety and smooth operation of electrical systems in various industrial settings.