The terminal distribution box is the“Last level distribution unit” of the power distribution system, which directly connects the front-end total distribution system with the terminal electrical equipment (such as household appliances, lamps and sockets) , its main function is to realize the distribution, protection and control of electric energy, and at the same time to centralize the management of circuit switches, protectors and other components. It is the core equipment to ensure the safety of terminal power consumption and convenient operation and maintenance, widely used in homes, shops, offices, industrial equipment and other scenarios.