The product is a Littelfuse FLSR 400 ID Amp Fuse with a maximum amperage of 400A and a voltage rating of 600V. It is not a non-domestic product and is not a custom bundle. This fuse is designed for electrical equipment and supplies, specifically in the industrial sector. With its reliable brand reputation and specific current rating, this Littelfuse fuse is a crucial component in ensuring electrical safety and functionality in various systems.