Distribution Box: Handles main supply voltage (220V–690V) with current ranging from tens to hundreds of amps. Junction Box: Mainly for low-voltage wiring (12V–240V), depending on. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. The. What are the functions and uses of DB Boxes? What is a Distribution Box? A distribution box, or DB box, is a circuit breaker enclosure. 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. 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. Electrical systems power our. Their size and internal configuration vary according to the voltage, current, number of circuits, protection requirements and installation environment. Typical components include a. Whether you're planning a renovation, troubleshooting electrical issues, or simply want to understand your building's electrical infrastructure, knowing the basics can save you time, money, and potentially prevent safety hazards.