To prevent hazardous electrical faults, the interior mounting plate or sub-base supporting live components must be non-conductive. The distribution box (DB box) helps safely and efficiently distribute electrical power. Also called an electrical distribution box, power distribution box or DB box, it helps organize electrical connections, isolate circuits and protect wiring. In electrical engineering, a distribution box (often referred to as a DB board, panelboard, or breaker box) is the central hub where the main electrical power feed is carefully divided into subsidiary circuits.