The working principle of a distribution box is mainly to distribute, control, and protect electricity through internal electrical components. After the power is input into the distribution box from the power source, it is first controlled by the main switch, and then distributed to various electrical equipment through various branch switches according to different electricity needs. At the same time, the distribution box is also equipped with various protective devices, such as overload protection, short circuit protection, leakage protection, etc., to ensure the safe use of electricity.

According to different usage scenarios and voltage levels, distribution boxes can be divided into various types. Common distribution boxes include low-voltage distribution boxes, high-voltage distribution boxes, power distribution boxes, lighting distribution boxes, etc. Each type of distribution box has its specific application scenarios and functional characteristics to meet the needs of different users.

Distribution boxes are widely used in fields such as homes, commercial areas, industrial areas, transportation facilities, and public facilities. In the household sector, it converts high-voltage electricity from transmission lines into low-voltage electricity suitable for household use, and transmits it to various households through cables; In commercial areas, industrial areas, and transportation facilities, distribution boxes are mainly used to provide electricity for various facilities and ensure electricity safety and stability.

The distribution box has a protective function, which can automatically cut off the power supply in case of short circuit fault or abnormal situation of electrical equipment; It also has an indicator function, and the indicator lights on the panel can emit red, green, and yellow light to display the circuit status; In addition, the distribution box can also perform operations such as conversion switches, isolation transformers, measuring instruments, and branch circuit breakers.