公开(公告)号：US5079529A

公开(公告)日：1992-01-07

申请号：US416112

申请日：1989-10-03

申请人： Hirotoshi Ohishi ,  Tatunori Ikeda ,  Manabu Sogabe

发明人： Hirotoshi Ohishi ,  Tatunori Ikeda ,  Manabu Sogabe

IPC分类号： H01H71/66 ,  H01H71/10 ,  H01H73/48 ,  H01H89/08

CPC分类号： H01H71/1054 ,  H01H89/08

摘要： A remote-controlled circuit breaker has an operation mechanism unit (300), for selecting one of an off state and a remote-controllable state of the circuit breaker, and a movable contact (11, 12) which makes/breaks contact with a fixed contact (9.16) in connection with a motion of an electromagnetic unit (200) only in the remote-controllable state; and the movable contact breaks contact with the fixed contact irrespective of the motion of the electromagnetic unit at the time when an overcurrent tripping unit (400) is operated by a fault. A control lever (63) for moving the movable contact into and out of contact with the fixed contact has an elastic element (63A) which strengthens the engagement of a latch mechanism in the overcurrent tripping unit during an off-time of the electromagnetic unit.

公开(公告)号：US4975665A

公开(公告)日：1990-12-04

申请号：US421995

申请日：1989-10-16

申请人： Hirotoshi Ohishi ,  Tatunori Ikeda ,  Manabu Sogabe

发明人： Hirotoshi Ohishi ,  Tatunori Ikeda ,  Manabu Sogabe

IPC分类号： H01H89/08

CPC分类号： H01H89/08

摘要： A remote-controlled circuit breaker has an operation mechanism unit (300), for selecting one of an off state and a remote-controllable state of the circuit breaker, and a compact electromagnetic unit (200) and a movable contact (11, 12) which makes/breaks contact with a fixed contact in connection with a motion of the electromagnetic unit only in the remote-controllable state; and the movable contact breaks contact with the fixed contact irrespective of the motion of the electromagnetic unit at the time when an overcurrent tripping unit (400) is operated by a fault.