Patent ID: 7936548
Filing Date: 2011-05-03
Classification: H01H

Abstract:
1. An overcurrent switching apparatus for medium-voltage or high-voltage applications, comprising: coupling means; a contact system; operating means; and current detection means for switching said contact system associated with said current detection means, from a first state to a second state when a threshold current is exceeded, said current detection means disposed in a first current branch followed via said coupling means by said operating means configured to switch said contact system, disposed in a second current branch, from the first state to the second state, said current detection means having two busbar sections which run parallel to one another, in which a current is carried in opposite senses and of which at least one of said busbar sections can be deformed thus defining a deformable section, said deformable section can be changed from a normal position to an operating position by the threshold current being exceeded.