An electrical panel, also known as a distribution board, is a vital component in a building's electrical system. It typically contains a main breaker to control the overall power supply, individual circuit breakers safeguarding specific circuits, bus bars for power distribution, a neutral bar for return current, and a ground bar for safety. The panel is enclosed by a door and cover, featuring labels or a directory for circuit identification. Some panels may include voltage indicators, GFCI and AFCI breakers for safety in specific areas, and meters for voltage measurement. The configuration may vary based on the panel type, capacity, and local electrical codes. Regular maintenance and any modifications to the panel should be performed by licensed professionals to ensure safety and compliance with regulations.