发明名称 |
Low voltage circuit breaker with an electromagnetic tripping device |
摘要 |
A low voltage circuit breaker has an insulating housing which is split along a parting line into an upper part and a lower part. Disposed in the housing is an electromagnetic tripping device which comprises a fixed magnet yoke and a movably disposed armature. By means of trunnion (pivot) pins of rectangular cross-section the armature is mounted in bearing openings designed in the form of pocket-like cutouts in the wall surfaces of the lower part which limit the pole channels of the circuit breaker. The bearing surface of the bearing openings associated with a narrow surface of each trunnion pin may be composed of two subsurfaces disposed at an angle to each other so that an edge-like bearing results. For the attachment of the magnet yoke there is provided on the lower part of the housing an island-like projection which is spaced from the wall surfaces and against which the central part of the magnet yoke is caused to rest by a spring element. In addition, a protrusion of a conductor serves to secure the magnet yoke in its position.
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申请公布号 |
US4260969(A) |
申请公布日期 |
1981.04.07 |
申请号 |
US19790017980 |
申请日期 |
1979.03.06 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
TROEBEL, WERNER;KLATT, ERWIN |
分类号 |
H01H71/40;H01H71/02;H01H71/24;(IPC1-7):H01H73/48 |
主分类号 |
H01H71/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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