A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective. A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective. A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit. Distribution boards, often referred to as electrical panels or breaker boxes, serve as the nerve center of any electrical system. These essential components play a pivotal role in managing and distributing electrical power within a building or facility. They may sound similar, but they have different roles in electrical. Our distribution boards guide explains what they are, their uses and types, and how to connect distribution boards. What is a Distribution Board? A distribution board —also called a panelboard, breaker panel, or electrical. Also known as a distribution board or breaker panel, it acts as the control hub, distributing power to different circuits and protecting them from overloads and faults.