Features Dual Power Transfer Switch: Manually transfer to standby power supply or generator when common power supply fails, ensuring continuous power supply reliability. High Safety: Multiple stage circuit breaker and interlock mechanism provide leakage protection for both main and auxiliary circuits, ensuring high safety standards. Great Reliability: High breaking capacity, impact resistant and flame retardant materials, ensuring stable and reliable operation. Rail Installation: Standard rail installation, compact structure, convenient installation, and easy operation. Widely Used: Suitable for critical environments such as fire protection, hospitals, military industry, and banks where power failure is not allowed. Specification: Item Type: Interlock Circuit Breaker Material: PVC Rated Voltage: AC450V Frequency: 50Hz Stage: 2P+2P Breaking Capacity: 10KA Electrical Life: No less than 10000 times Mechanical Life: No less than 20000 times Warm Test: Class 2 (relative humidity 95% at 55℃) Package List: 1 x Interlock Circuit Breaker Package List 1 x Interlock Circuit Breaker