DRIVETRAIN FOR AT LEAST ONE MOVING CONTACT ON AN ELECTRICAL SWITCH AND CURRENT-LIMITING ELECTRICAL SWITCH WITH A DRIVETRAIN

摘要

The invention relates to a drivetrain, for at least one moving contact (6) in an electrical switch (1), comprising a switch shaft (9), a first coupling module, coupling the switch shaft to a drive (19) and at least one second coupling module (8), coupling the switch shaft to the at least one moving contact, whereby, in order to hold the at least one moving contact (6) in an on position a locking of the drive train in the on condition is provided and a component is provided which alters the span of the lock in a force-dependent manner, which permits a switching of the at least one contact into an off position. A component for altering the span of the drive train in a force-dependent manner of particularly flexible application is provided in the form of at least one torque-switching coupling (25, 35), by means of which the first coupling module (8) or the at least one second coupling module (15) is coupled to the switch shaft (9).