| 摘要 |
A circuit breaker includes a case, separable contacts housed within the case, and an operating mechanism for opening and closing the contacts. The operating mechanism includes a first pivot, a catch link and a U-link. The catch link has a first end and a second end, is pivotally mounted to the first pivot at the first end of the catch link, and is pivotally mounted to the U-link at the second end of the catch link. An operating handle includes a first handle portion extending through an opening of the case, a second elongated arm portion within the case, and a second pivot between the first and second portions. An independent operating handle link has a first end and a second end, is pivotally mounted to the second pivot at the first end thereof, and is pivotally mounted to the first pivot at the second end thereof.
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