What is the main panel in a residential electrical system?

The main panel in a residential electrical system is primarily understood as the service or distribution panel containing the service disconnect. This panel serves as the central point where electricity from the utility company enters the residential electrical system. It is equipped with circuit breakers or fuses that protect the circuits from overload and short circuits, and it includes a service disconnect that allows for the safe turning off of power to the entire system.

The significance of this panel lies in its role in controlling and distributing electrical power throughout the home. It provides the connection to the home's electrical service and ensures that electricity is properly routed to various circuits for lighting, outlets, and appliances, while also providing the necessary safety features to protect both the electrical system and the inhabitants of the home.

While terms like service disconnect, sub-panel, and distribution panel might be related to specific functions or components of an electrical system, they do not encompass the full definition of the main panel. The main panel not only acts as the distribution hub but also includes the critical service disconnect feature, making it an essential component for both functionality and safety in residential wiring.