| 摘要 |
An electrical switching device, in particular a circuit breaker, is disclosed. In order to shorten the opening times of a switching device such as this, a snap-action system is used. The system interacts with the moving contact piece, of an electrical switching device having a switching shaft and having a moving contact piece which can be operated by the switching shaft, such that the moving contact piece is automatically moved to a switched-off position after opening of the contact by electrodynamic forces in the event of a short circuit or the like. The contact load on the moving contact piece decreases as the opening increases. This may result in better short-circuit current limiting. The overall production costs may be considerably reduced.
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