Patent ID: 8237074

Claim:
A switching device, comprising: an input terminal and an output terminal for connection to electrical conductors; a first switching contact configured as a movable switching contact and a second switching, with the switching contacts, when closed, closing a current path between the input terminal and the output terminal; a disconnect device operable to disconnect the first switching contact and the second switching contact; an arc quenching chamber arranged in a region of the first and second switching contacts and having a first opening in a first region, with the first switching contact passing through the first opening and a plurality of metal plates, with at least two of the plurality of metal plates abutting one another at least over a region, a closure element arranged in the first region of the first opening and being formed of thermoplastic material, with the closure element having a slot oriented substantially perpendicular to the plurality of metal plates and at least one recess arranged substantially parallel to the slot, and at least one conductor plate arranged in each of the at least one recesses.