| 摘要 |
A circuit breaker includes a case having an opening, and separable contacts having a closed position and an open position housed within the case. An operating mechanism for opening and closing the separable contacts includes a pivot and a pair of extension springs for moving the operating mechanism to close the separable contacts. The operating mechanism further includes an operating handle for operating the operating mechanism. The operating handle includes a first or handle portion extending through the opening of the case and a second arm portion having a pair of elongated arms within the case. Each one of the extension springs extends between a corresponding one of the elongated arms and the pivot. The operating mechanism further includes a pair of links having an unbroken state corresponding to the closed position of the separable contacts and a broken state. One of the links pivots about the pivot.
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