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. These Distribution Boxes enable decentralized installation of the electronics close to the load. The range of applications extends from pure energy distribution in buildings to building automation and through to industrial plants. SMART DISTRIBUTION BOXES FOR FLEXIBLE BUILDINGS. The. A distribution box is an electrical enclosure that receives power from a main supply and distributes it to multiple protected branch circuits. It is a vital part and central hub of any electrical system. Whether it's a home, office, or factory. Plastics like PVC and HDPE are light and do not rust. Pick the right material for your distribution box.