2 Pole DC 800V Circuit Breaker for Solar ( PV ) System 1,L7,C45N,C60N,C65N design 2,High quality ... 2 Pole DC 800V Circuit Breaker ( DC MCB breaker ) for Solar ( PV ) System ker(hereafter ref The KL7-DCseries DC Mini Circuit ... . 2 Pole DC 800V Circuit Breaker ( DC MCB breaker ) for Solar ( PV ) System