The terminals are where the wires connect to the distribution box. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. The. 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. The distribution box (DB box) helps safely and efficiently distribute electrical power. But what exactly is a power distribution box, and why is it so essential in our daily lives? The DB panel board controls the flow of electricity. A distribution box uses MCBs, RCDs, and busbars to protect circuits, prevent shocks, and ensure safe power distribution in homes and buildings. Inside, you'll find parts like circuit breakers and fuses that protect the system from problems like overloads and short circuits. It ensures that electricity flows. Every wire in your home — every socket, every light, every appliance circuit — traces back to a single grey box on the wall: the distribution board, also called a consumer unit or, in older installations, a fuse box.