What is a panelboard?

A panelboard is indeed a component that plays a crucial role in electrical distribution within a building. Its primary function is to divide an incoming electrical power feeder into smaller branch circuits, which deliver electricity to various parts of a building or facility. This allows for better management of electrical loads and provides the ability to protect circuits with fuses or circuit breakers.

The design of panelboards enables them to house multiple circuit breakers, which can control the flow of electricity to different areas. This setup is essential for safety, as it allows for individual control and protection of circuits, making it easier to isolate issues and manage electrical distribution effectively. Understanding the role of a panelboard is fundamental in load calculations and electrical system design, as it ensures that the electrical demand is met without overloading any single component.