Abstract: A tripping shaft apparatus for a circuit breaker. Tripping shaft apparatus includes a rigid shaft portion and a polymer shaft portion molded onto the rigid shaft portion, wherein the polymer shaft portion includes a first molded lever. At least one other lever is a part of the tripping shaft apparatus. A torsion spring is received over the shaft between the first molded lever and the second lever providing an integral torsion spring positioned between the levers. Circuit breaker tripping assemblies and methods of assembling a circuit breaker tripping assembly are provided, as are other aspects.

Abstract: A tripping shaft apparatus for a circuit breaker. Tripping shaft apparatus includes a rigid shaft portion and a polymer shaft portion molded onto the rigid shaft portion, wherein the polymer shaft portion includes a first molded lever. At least one other lever is a part of the tripping shaft apparatus. A torsion spring is received over the shaft between the first molded lever and the second lever providing an integral torsion spring positioned between the levers. Circuit breaker tripping assemblies and methods of assembling a circuit breaker tripping assembly are provided, as are other aspects.

Abstract: A switching device is disclosed, in particular an electrical circuit breaker, including a housing and a switching unit disposed inside the housing. In at least one embodiment, the housing includes an openable housing cover with a switching opening through which a control lever head, which can be moved between an on-position and an off-position, of a control lever for switching the switching unit projects. The switching opening includes an opening contour and the control lever head includes an outer contour, which are aligned with one another such that the control lever head in the on-position prevents any movement of the housing cover via the control lever head, and in the off-position permits a movement of the housing cover via the control lever head.

Abstract: A switching device is disclosed, in particular an electrical circuit breaker, including a housing and a switching unit disposed inside the housing. In at least one embodiment, the housing includes an openable housing cover with a switching opening through which a control lever head, which can be moved between an on-position and an off-position, of a control lever for switching the switching unit projects. The switching opening includes an opening contour and the control lever head includes an outer contour, which are aligned with one another such that the control lever head in the on-position prevents any movement of the housing cover via the control lever head, and in the off-position permits a movement of the housing cover via the control lever head.