In summary, fuse holders are based around common automotive fuses. Most common of which are ATO, MINI, JCASE, MAXI, MIDI, and ZCASE fuses. The product characteristics, including fuse type, color, mounting method, IP rating, and others, will depend based on the environment in which a fuse is mounted. As for applications and customers, common uses are in secondary or auxiliary circuits that are either in addition to standard features, or are integrated later in the design cycle. It is important to remember that these products are used any time there is a dedicated circuit removed from, or in addition to, the main circuit protection center of a vehicle.