Switching apparatus for an electrical switching device

摘要

A switching apparatus for an electrical switching device is disclosed, in particular an electrical circuit breaker, for safeguarding at least two poles. A tripping element is included for each pole, supported moveably between a rest position and a tripping position. A common switching frame, movable between a pre-tension position and a switching position, is actively connected for force transmission to frame sections of the at least two tripping elements for the movement of the switching frame into the switching position upon movement of the tripping element into the tripping position. At least one spring element is embodied to apply force to the frame sections of the at least two tripping elements in the direction of the rest position of the at least two tripping elements.

主权项

1. A switching apparatus for an electrical switching device, for safeguarding at least two poles, comprising:
at least two tripping elements, supported moveably between a rest position and a tripping position, each of the at least two tripping elements being for a respective one of the at least two poles; at least one spring element, embodied to apply force to frame sections of the at least two tripping elements in a direction of the rest position of the at least two tripping elements; and a common switching frame for the at least two tripping elements, the common switching frame being movable between a pre-tension position and a switching position and being configured to engage with frame sections of the at least two tripping elements such that the common switching frame moves against the force of the at least one spring element from the pre-tension position into the switching position upon movement of at least one of the tripping elements into the tripping position, wherein the common switching frame comprises a switching section protruding from a surface of the common switching frame, the switching section being embodied to actuate a switch for switching the switching apparatus when the common switching frame is moved from the pre-tension position into the switching position, wherein, for each frame section, the common switching frame includes an associated freewheel area, embodied such that when one of the at least two tripping elements is moved into the tripping position, any untripped tripping elements of the at least two tripping elements remain in the rest position upon movement of the common switching frame.