Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Check for proper IP/NEMA ratings and material quality. The installation requirements and specifications of Distribution box involve many aspects, including site selection, fixing method, wiring specifications and safety protection. It divides incoming power into subsidiary circuits and provides a protective fuse or circuit breaker for each one. You must make safety your top priority when working with low voltage distribution boxes. 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.