Distribution boxes are used in many types of electrical systems because they provide a safe and organized way to distribute power. In factories, workshops, and processing plants, distribution boxes help manage power distribution to machinery, equipment, and control systems. SMART DISTRIBUTION BOXES FOR FLEXIBLE BUILDINGS. It helps organize, protect, and control electrical connections in residential, commercial, and industrial electrical systems. Distribution. A distribution box, or DB box, is a circuit breaker enclosure. The hub distributes electrical power from a single input source to various circuits throughout a building.