The PZ30 series terminal combination distribution box complies with standards such as GB7251.1 and JB/T7121 "Modular Terminal Combination Electrical Appliances". The distribution box adopts a steel plastic structure, and the box base is made of steel structure and plated. The end cover is made of flame-retardant engineering plastic injection molding and equipped with a transparent polycarbonate protective cover. The distribution box has both the artistic beauty of plastic and the sturdiness of steel structure. The transparent cover makes the working status of the switchgear clear at a glance. The electrical components inside the distribution box are installed using guide rails, with a width of 18mm as the module. Mainly used for installing terminal electrical appliances, it has the characteristics of modular electrical size, installation track, artistic appearance, and safe use. It is suitable for single-phase three wire or three-phase five wire end circuits with a rated voltage of 220V or 380V and a total load current of no more than 100A. It is widely used in high-rise buildings, hotels, residences, stations, ports, airports, hospitals, cinemas, large commercial outlets, and industrial and mining enterprises.