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. A distribution board is a key part of any electrical system. It acts as the central hub where electricity from the main supply is divided and sent to different circuits throughout a building. Simply put, it helps manage how power flows across various areas—from your living room lights to heavy-duty. A distribution board or distribution panel (DP) is an important part of an electricity supply system. It is usually installed to serve a specific area like a kitchen, garage, workshop, or extension. In this comprehensive guide, we will explore.