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A fuse holder is a safety component that securely houses a fuse in electrical circuits of boilers and burners. It protects the system from overcurrent by holding the fuse in place and ensuring proper electrical contact. This fuse holder is designed for easy installation and replacement, making it a convenient spare part for boiler maintenance. If you are experiencing electrical issues or a blown fuse, checking the fuse holder for damage is a good first step. Reliable fuse holders are crucial for the safe operation of heating equipment.