These components support residential and commercial installations by managing the incoming supply, distributing power across branch circuits, and protecting the system from overloads, faults, and leakage. It is a vital part and central hub of any electrical system. The hub distributes electrical power from a single input source to various circuits throughout a building. In this comprehensive guide, we will explore. Terminals: These are connection points where wires are attached, ensuring secure and proper wiring. Acting as a central hub, a distribution box receives electricity from the main power. For procurement professionals, electrical contractors, and project managers, choosing the right Distribution Box (DB Box) is a critical decision that directly impacts system safety, reliability, and long-term operating costs.