If a single fuse holder is not sufficient to integrate an additional device into the electrical system, or if several functions are to be added at once, the use of a fuse box is an option. The bundling of the backup functions at a central point creates both an overview and ease of maintenance. As with the fuse holders, there are numerous variants for each fuse type, differing in shape, colour, size, contacting and protection class. The fuse box sets are modular in design, which means that the fuse box can be individually assembled to suit the application.