What does a busbar do in a panelboard?

A busbar in a panelboard is an essential component that conducts electricity and acts as a distribution point for multiple circuits. It is a conductive material, often made from copper or aluminum, that allows electricity to flow efficiently through the panelboard, distributing power to various connected circuits.

Its primary function is to collect electric power from incoming feeders and distribute it to outgoing circuits, typically by connecting to circuit breakers or fuses that protect each circuit from overcurrent. The design of busbars allows them to handle high currents smoothly, ensuring reliable and safe power distribution within the electrical system.

While other components may serve specific functions in electrical systems, such as providing backup power or monitoring usage, the main role of a busbar is to facilitate the efficient distribution of electrical power across various circuits within the panelboard.