Circuit breaker latching mechanism

A circuit breaker, comprising:

• a latching mechanism including a switching mechanism for opening and closing a switch contact which is operatively connected to a tensioning element;
• and
• an unlatching mechanism by which, in response to a tripping signal, the tensioning element is transferrable from a tensioned state into an at least substantially relaxed state in such a way that the switch contact is opened thereby, the tensioning element being indirectly coupled to a tension lever which is lockable or trippable as a function of a position of a blocking pawl of the unlatching mechanism and which includes a blocking mechanism by which, in an OFF position of the latching mechanism, in which the switch is open and the tensioning element is tensioned, tripping of the tension lever is prevented, the blocking mechanism of the tension lever including a rocker arm fastened movably on the tension lever, wherein, during a reset operation which is performed after tripping of the latching mechanism in order to reactivate the unlatching mechanism, the rocker arm is moved in such a way that a reset contour on the tension lever is freely accessible to an actuation element, and wherein, during the reset operation, a tensioning bolt can be brought at least temporarily into engagement with the reset contour, the reset contour being operatively connected to an actuating lever via which the reset operation is initiated.