公开(公告)号：US10453637B2

公开(公告)日：2019-10-22

申请号：US16007401

申请日：2018-06-13

申请人： LSIS CO., LTD.

发明人： Seungpil Yang ,  Sangchul Lee ,  Youngkook Kim ,  Ilhyun Kim

IPC分类号： H01H21/04 ,  H01H21/54 ,  H01H71/56 ,  H01H71/04 ,  H01H71/12 ,  H01H71/08 ,  H01H1/44 ,  H01H21/50

摘要： A direct-current (DC) air circuit breaker for opening and closing a circuit according to various embodiments includes a circuit unit having a main circuit, a detecting unit having a detection circuit for detecting a fault current in the main circuit, and a circuit operating device configured to allow connection or isolation between the main circuit and the detection circuit.