The answer to 'how long does fuse box last' is that a properly maintained fuse box can typically last 20-40 years or more. Fuse boxes are designed to be durable, but their lifespan depends on factors like the quality of the installation, electrical load, and how well the homeowner maintains it.
Over time, the components in a fuse box can wear out or become outdated. Fuses may need to be replaced periodically, and the entire fuse box may need to be upgraded or replaced if it can no longer handle the electrical demands of the home. Regular inspections by a licensed electrician can help ensure the fuse box is operating safely and efficiently.