Power distribution box and lighting distribution box

A main distribution box is typically a power distribution box, not a lighting distribution box.Key DifferencesLighting Distribution Box: Primarily handles small loads such as lighting fixtures, ordinary sockets, and small motors. It usually operates on single-phase power, occasionally three-phase, with total current generally under 63A and individual circuit currents below 15A. These boxes are simpler and can often be operated by non-professionals . Power Distribution Box: Designed for larger loads, including combined lighting and power circuits, or heavy equipment like pumps, fans, air compressors, and industrial machinery. It typically operates under three-phase four-wire systems up to 500V AC, with higher current capacities beyond 63A. Power distribution boxes include protective devices such as circuit breakers, fuses, AC contactors, and thermal relays, and are generally operated only by trained professionals .Main Distribution Box RoleThe main distribution box, also called a distribution board or panel, serves as the central hub of an electrical system. It receives incoming power from the main supply and distributes it to multiple branch circuits, including both lighting and power outlets. It houses protective devices like breakers and residual current devices to ensure safety and organized power distribution . Because it handles the primary incoming supply and often supports high-capacity loads, it is classified as a power distribution box rather than a lighting distribution box.Safety and OperationDue to the higher voltage and current levels, main distribution boxes require careful handling. Only qualified personnel should operate or maintain them. Proper installation, grounding, and protective devices are essential to prevent overloads, short circuits, and electrical hazards . Conclusion: While lighting distribution boxes manage small, localized lighting loads, the main distribution box functions as a power distribution box, distributing electricity to all major circuits in a building and providing protection for both lighting and power systems.