Distribution boxes, also known as junction boxes, electrical boxes, or panelboards, are essential components in electrical distribution systems. In this guide, we'll break down the 12 main types of distribution boxes in a way that's easy to understand. We'll chat about what each one does, where it shines, and then dive into how to choose the perfect box for your needs. Here, we'll delve into what an electrical distribution box is, how it works, the components inside, types, and what to consider. A distribution box, also known as a power distribution box or electrical distribution box, is used to distribute electrical power safely to multiple circuits.