Patent ID: 8553385

Claim:
A release for an electric switching arrangement arranged in the course of a current path, the release comprising: at least two switching contacts, arranged in a housing and separated if a current flowing via the at least two switching contacts exceeds a threshold value; and an actuating element configured to respond, against a force of a restraining apparatus, to a gas pressure generated by an electric arc struck in an event of electrodynamic recoil of the at least two switching contacts in a separating zone of the at least two switching contacts, the separating zone being surrounded by the housing, the actuating element being configured to actuate a shutdown mechanism to bring about automatic interruption of the current path, wherein the actuating element includes, a movable element including a blocking element in a flow channel, the flow channel having a flow direction of the gas pressure and being connected to the separating zone, said blocking element being transverse to the flow direction of the gas pressure through the flow channel and configured to carry out a control movement in the presence of the gas pressure to result in a shutdown, the movable element being mounted such that a movement path of the blocking element extends in a plane which lies transversely to the flow direction of the flow channel, the blocking element being configured to control a flow of the gas pressure through the flow channel based on a force applied to the blocking element by the gas pressure.