... Pole DC 800V Circuit Breaker for Solar ( PV ) System 1,L7,C45N,C60N,C65N design 2,High quality 2 Pole DC 800V Circuit Breaker ... overload, short circuit protection to the current electrical power distribution system's facility and the electrical equipment, but widely ... to +, - the polarity; ; Under the power source progresses, conforms to the power source coil in characteristic, the easy installation, ...