A distribution boxes acts as the load center and main distributor of electrical power within a building. Also called a distribution board, panel board, breaker panel, or electric panel, it is the central hub in an electrical system that divides incoming power into various. A distribution board is a key part of any electrical system. Simply put, it helps manage how power flows across various areas—from your living room lights to heavy-duty. A distribution box (often called a DB box, consumer unit, or sub-distribution box) is a small enclosure. It receives power from a main source and distributes it into a few circuits. It is usually installed to serve a specific area like a kitchen, garage, workshop, or extension.