Switch device with contact cover

A switch device comprising at least one contact point, the contact point having a first contact and a second contact, the first and second contacts being spaced apart from one another in an open position and electrically contacting one another in a closed position, the contact point being assigned an arc blowout device for generating a magnetic blowout field, the blowout field being such that an arc produced when the contact point is opened is blown away from the contact point, wherein at least one of the two contacts has a non-conductive cover on a non-contact-facing side which faces away from the respective other contact, which cover prevents a base point of the arc from crossing the non-contact-facing side, wherein the cover has, on a longitudinal side of the contact with the cover which runs substantially parallel to magnetic field lines of the blowout field, a recess which is arranged and formed in such a way that the base point of the arc runs into the recess when the arc is blown away from the contact point.