Features： 1、Reliable Using: When the circuit is short circuited, the circuit breaker can trip immediately to protecting the circuit and extend the service life. Can also be used as the on off switch of DC load circuit. 2、High in Safety: Can be used as a manual operated micro dual power transfer switch. Composed of multi stage circuit breaker and interlock mechanism for the leakage protection of both main circuit and auxiliary circuit. 3、Practical Work: Widely used in solar panel grid system, wind and solar hybrid power system, DC power system, ship power system, solar photovoltaic system, or other DC systems. 4、Better Designs: Made from highly flame retardant and impact resistant PVC material, the circuit breaker switch has 4500A high breaking capacity. 5、Easy to Install: Comes with a light weight and a compact size as well, the convenient installation can be quickly completed with in several minutes. Specification： Item Type: Circuit Breaker Material: PVC Rated Voltage: AC400V Frequency: 50Hz Stage: 2P+2P Sectioning Capacity: 4500A Electrical Life: No less than 10,000 times Mechanical Life: No less than 20,000 times Warm test: Class 2, relative humidity 95% at 55 ℃. Package List： 1 x Circuit Breaker