Fuses, fuse kits, and accessories are used in electrical installations and equipment to provide overcurrent protection for a circuit. Fuses open a circuit when exposed to overcurrent to help prevent damage to wiring and equipment. Fuse kits include multiple fuses for fitting new installations or replacing blown fuses. Fuse blocks, holders, and covers keep fuses secure and protected while they're connected to an electrical circuit. Fuse reducers and clips are used to install fuses in fuse blocks and holders.