Inside a distribution box are components like circuit breakers, earth leakage units, doorbells, and timers. The building's electrical power enters through the main feeding cable, which connects to the distribution board. 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, also known as a power distribution box or electrical distribution box, is used to distribute electrical power safely to multiple circuits. From there, the power is distributed through the breakers to secondary. This ultimate guide explains what a distribution box does, its internal components, common types, real-world applications, and how to select the right DB Box for your project.