Line protection switch for switching arrangement, has contact element, which moves anchor from unmoved contact element and contact element is pushed away by exceeding threshold value by current flowing across current path

摘要

The line protection switch has opening mechanism, which is so designed, that the contact element (20), which moves an anchor (34) from the unmoved contact element (18). The contact element is pushed away by exceeding a threshold value by a current flowing across the current path, without latching the latching mechanism (28). The latching mechanism latches an anchor by exceeding another threshold value by a current flowing across the current path and latter threshold value is greater than the former threshold value.