Abstract: An operating attachment for arrangement on a predefinable switching device and for operating a pivotable switching device toggle of the switching device includes: a one-sided open housing positionable on the switching device; a rotatable shaft having a rotation axis; a manual operating part, the manual operating part being situated on the rotatable shaft; a switch-on projection for pivoting the switching device toggle in a first pivot direction, the switch-on projection being situated on the rotatable shaft; a switch-off projection for pivoting the switching device toggle in a second pivot direction opposite the first pivot direction, the switch-off projection being situated on the rotatable shaft; and a housing stop for contacting a stop edge of the switch-off projection, the housing stop being situated in the one-sided open housing. The switch-off projection yields resiliently such that the switch-off projection is bent for contact with the housing stop.

Abstract: An operating attachment for arrangement on a predefinable switching device and for operating a pivotable switching device toggle of the switching device includes: a one-sided open housing positionable on the switching device; a rotatable shaft having a rotation axis; a manual operating part, the manual operating part being situated on the rotatable shaft; a switch-on projection for pivoting the switching device toggle in a first pivot direction, the switch-on projection being situated on the rotatable shaft; a switch-off projection for pivoting the switching device toggle in a second pivot direction opposite the first pivot direction, the switch-off projection being situated on the rotatable shaft; and a housing stop for contacting a stop edge of the switch-off projection, the housing stop being situated in the one-sided open housing. The switch-off projection yields resiliently such that the switch-off projection is bent for contact with the housing stop.

Abstract: A switching device has a housing-mounted contact and a movable contact. The movable contact is provided for making contact with the housing-mounted contact. The switching device has a switch lock with a latch and a latch support, wherein the latch support has a latching location for latching the latch to the latch support, wherein the switching device furthermore has a hand switching lever. A connecting rod is mounted movably on the latch support, the connecting rod bearing against a projection of the hand switching lever when the hand switching lever is arranged in the position in which the contacts are in contact. An actuation of the hand switching lever—for separating the movable contact from the housing-mounted contact—moves the connecting rod and thereby releases the latching of the latching support to the latch.

Abstract: A switching device has a housing-mounted contact and a movable contact. The movable contact is provided for making contact with the housing mounted contact, The switching device has a switch lock with a latch and a latch support, wherein the latch support has a latching location for latching the latch to the latch support, wherein the switching device furthermore has a hand switching lever. A connecting rod is mounted movably on the latch support, the connecting rod bearing against a projection of the hand switching lever when the hand switching lever is arranged in the position in which the contacts are in contact. An actuation of the hand switching lever—for separating the movable contact from the housing-mounted contact—moves the connecting rod and thereby releases the :latching of the latching support to the latch.

Abstract: A lock for a circuit breaker has a main body having a cutout to accommodate an actuating element of the circuit breaker. The lock has a projection which can be moved relative to the main body and can be brought into engagement with at least one opening/recess in the circuit breaker. To this end the projection is mounted in a slide which is displaceable relative to the main body and which slide extends obliquely relative to its direction of displacement and to the direction of displacement of the projection or has at least one such section.

Abstract: An arc quenching chamber insert for an electrical switching device has a metal plate holder made of an insulating material, and in which a predefinable plurality of metal plates are mounted in the metal plate holder in a predefinable spaced relation to each other. A first end region of the metal plate holder is designed with predefinable contouring, and that a second end region of the metal plate holder at the opposite end from the first end region have mirror-inverted contouring compared with the first end region.