The answer to 'why is my fuse box tripping breaker' is that there is likely an overload or short circuit in your electrical system causing the breaker to trip. This can happen when too many devices are plugged in and drawing too much power, or if there is a problem with the wiring or an appliance. When a breaker trips, it's a safety feature to prevent damage or fire.
Some common causes of a tripping breaker include faulty appliances, damaged electrical cords, outdated wiring, or a circuit that is overloaded. It's important to identify and fix the underlying issue to prevent the problem from recurring. If the breaker keeps tripping, you may need to call an electrician to inspect your electrical panel and wiring.