In order to meet the requirements of fan localization, Changshu Switch has developed the CW3F universal circuit breaker based on thorough research to meet the application requirements The development requirements of full power wind power generation systems. The CW3F universal circuit breaker is suitable for AC frequencies of 10Hz~200Hz, rated working voltage of 1000V and below, and rated current of up to 2500A, used in high-speed, medium speed, and low-speed permanent magnet wind power generation systems.