1The DC surge protector is suitable for preventing damage to the DC power supply system and electrical equipment caused by lightning overvoltage and transient overvoltage, and protects the safety of equipment and users. DC surge protectors are widely used in photovoltaic power generation systems, mobile communication base stations, microwave communication bureaus (stations), telecommunications equipment rooms, factories, civil aviation, finance, securities and other systems for DC power protection. 2DC surge protectors are only used for various DC power supply systems, such as DC power distribution panels, DC power supply equipment, DC distribution boxes, electronic information system cabinets, and output terminals of secondary power supply equipment. 3The DC surge protector adopts temperature control circuit breaker technology and built-in over-current protection circuit to completely avoid the fire risk caused by the self-heating of the surge protector; and select high-quality components and use advanced production technology to manufacture; large current capacity, The residual voltage is low; and the DC surge protector has its own remote alarm dry contact; the working status and failure status are clear and intuitive; the DC surge protector is easy to install and simple to maintain; the craftsmanship is exquisite and can be used in acid, alkali, dust, salt spray and Long-term work in harsh environments such as humidity.