Meter box and small power distribution unit is a device used to install electric energy meters. It has several characteristics of its own that make it always popular in power systems. First of all, the meter box and small power distribution unit has protection and safety functions, which can effectively isolate the energy meter and the power system to ensure safe operation. Secondly, it provides a convenient power measurement and reading interface, which facilitates power management. meter box and small power distribution unites are usually made of corrosion-resistant and wear-resistant materials and have a long service life. In addition, it has a compact design and takes up little space, making it suitable for various occasions. With the development of technology, meter box and small power distribution unites have become increasingly intelligent, enabling remote monitoring and data transmission to meet the needs of modern power management. These characteristics make meter box and small power distribution unites widely used in power systems.