The application in the field of new energy is a key link to ensure the safe and reliable operation of the system. With the rapid development of new energy technologies such as photovoltaics, wind power, energy storage, and electric vehicles, circuit breakers need to cope with challenges such as high DC voltage, high short-circuit current, and complex working conditions. The innovation of circuit breakers in the field of new energy is driving the industry towards higher voltage, intelligence, and safety, making them an indispensable "safety guard" for new energy infrastructure.