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. 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. 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 box, or DB box, is a circuit breaker enclosure. It is a vital part and central hub of any electrical system. Whether it's a home, office, or factory, the DB box makes sure power. Our flexible distribution boxes enable reliable, decentralized signal transmission and power transmission up to protection class IP67 – wherever passive distribution boxes are required. In practical. Overload Protection: Prevents circuits from carrying too much current, which can cause overheating and potentially lead to fires. Reliable Circuit. A distribution board (also known as a panelboard, circuit breaker panel or box, 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 breaker for each circuit in.