summary This product is mainly used in household photovoltaic distributed grid connected power generation systems, household and small-scale industrial and commercial photovoltaic power generation systems, connected in series between grid inverters and the power grid. The product has a series of protections such as anti islanding protection, voltage closing and tripping, low voltage of the power grid, overvoltage of the power grid, lightning protection for transmission, system overcurrent, and power grid isolation. The energy metering, transmission, and intelligent operation control are essential parts of the household grid connected power generation system. The product has passed the industry standard CCC certification. 1: Product principle: Photovoltaic grid connected distribution box is a low-voltage distribution device that assembles switchgear, measuring instruments, protective appliances, and auxiliary equipment in enclosed or semi enclosed metal cabinets or screens according to electrical wiring requirements. During normal operation, the circuit can be connected or disconnected using manual or automatic switches. When there is a malfunction or abnormal operation, use protective appliances to cut off the circuit or sound an alarm. Measuring instruments can display various parameters during operation, adjust certain electrical parameters, and provide prompts or signals for deviations from normal working conditions. Commonly used in various power generation, distribution, and substations. 2: Product features: Photovoltaic grid connected distribution box, distribution cabinet, distribution panel, distribution screen, etc. are complete sets of equipment for centralized installation of switch integrated distribution box wiring guidance, instruments, etc. Multiple self resetting overvoltage and undervoltage protectors, as well as photovoltaic specific reclosing circuit breakers, are available to meet the usage needs and acceptance standards of different regions; The lid of the box requires a professional key to open, achieving specialized management; Spray painted box and stainless steel box are optional; Outdoor installation for safer use; Support special requirements and customized functions. The protection level of metal distribution boxes is higher, and the commonly used protection levels are: IP30,IP44,IP54,IP55,IP65， Explosion proof. Reasonably allocate electrical energy to facilitate circuit opening and closing operations. It has a high level of safety protection and can intuitively display the conductivity status of the circuit. Easy to manage and facilitate maintenance in case of circuit failure. 3: Installation form: Wall mounted installation, embedded concealed installation, exposed floor installation (can be customized according to needs).