Distribution boxes are built with durable materials, typically metal or high-grade plastic, designed to endure environmental stresses. The range of applications extends from pure energy distribution in buildings to building automation and through to industrial plants. SMART DISTRIBUTION BOXES FOR FLEXIBLE BUILDINGS. Each fuse is designed to blow when the current exceeds a certain limit, thereby cutting off the power to prevent damage. Although less common in modern installations, fuse. DuFab Manufacturing's prefabricated solutions, such as Temporary Power Distribution Equipment, demonstrate how modular engineering simplifies setup. Each enclosure is pre-wired, tested, and built to NEC standards, making it easier to deploy safe, compliant power distribution at job sites or. A Distribution Box, commonly known as a DB Box, serves as the central point for safely distributing electrical power from a main supply to multiple downstream circuits. The boxes also store protective equipment devices.