Lower IP ratings may be enough for protected indoor use, while higher ratings are better for installations that require stronger protection against dust and water. You should also consider the number of circuits, current load, and possible future expansion. What is a Distribution Board? A distribution board or distribution panel (DP) is an important part of an electricity supply system. Most of the time, each of these secondary circuits will be. This guide explains how to distinguish panel types, evaluate technical specs, and identify when to choose custom solutions such as those offered by Eabel. With one input and several outputs, these boxes allow multiple devices to connect through the distro.