A 240-volt service powers heavy-duty appliances like ovens, air conditioners, water heaters and electric dryers. If something goes wrong in that panel, it may cause those systems to fail, damage ...

Related: How to Reset a Tripped Circuit Breaker The breaker panel, or electrical box, serves as the connection between the local power grid outside the home and the wiring inside the home.

Your electrical control panel is the unsung hero of your home or building — it quietly distributes electricity, keeps your appliances running, and helps protect your property from electrical hazards.