Feature: 1. Dual Power Transfer Switch: When the common power supply fails, you can manually transfer to standby power supply or generator, ensure the reliability of continuous power supply. 2. High Safety: This power supply transfer switch is composed of multiple stage circuit breaker and interlock mechanism, realizes both the main circuit and auxiliary circuit have leakage protection. 3. Great Reliability: This interlock circuit breaker has high breaking capacity, the shell and parts are made of impact resistant, flame retardant materials, stable and reliable. 4. Rail Installation: Adopt standard rail installation way, with compact structure, convenient for installation, easy to operate. 5. Widely Used: Suitable for places where power failure is not allowed, such as fire protection, hospital, skyscraper, military industry, construction market, bank, networks, etc. Specification: Item Type: Interlock Circuit Breaker Material: PVC 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