An electrical device, in particular a switching unit or control unit for a motor vehicle, including a housing, which includes a connection area for electrically contacting the housing with a connecting plug, the connection area including at least one receiving contour, which has a circumferential wall area, for the connecting plug, the wall area encompassing electrical connecting elements, and at least one fixing or locking element being provided in the connection area, which is designed to connect the connecting plug to the housing in the connection area. It is provided that at least one fixing or locking element is situated in each case both inside and outside the wall area.