Circuit Breaker, DC Isolator, DC Disconnector manufacturer / supplier in China, offering PV String Level DC Rapid Shutdown Device Firefighter Safety Switch, 1600V 55A 8p Single Hole Mounting, Ideal for Solar PV and Energy Storage Systems. Non-Polarity DC Isolator, 1600V 50A 13A, 20A, 25A, 40A, 4p DC Lsolator with Shunt Release for Inverter PV Energy Storage System Isolation Switch and so on.