1、Long Life Span: Made of PVC material, this circuit breaker is flame retardant and impact resistant, it possesses a long life span. 2、Leakage Protection: This circuit breaker is composed of multi stage circuit breaker and interlock mechanism to realize the leakage protection function of both main circuit and auxiliary circuit. 3、Manual Operation: When the common power supply fails, the standby power supply or generator can be manually transferred to ensure the reliability and safety of power supply. 4、Easy Installation: This circuit breaker adopts standard rail installation that the installation can be completed in minutes. 5、Fine Workmanship: This circuit breaker is well made with delicate appearance and reasonable structure, choose it with confidence! 6、Wide Application: This circuit breaker is very suitable for places where power is not allowed to cut, such as hospitals, skyscrapers, military industry, construction markets, banks, etc.