Patent ID: 8830643

Claim:
A polarity reversal protection device for a motor vehicle comprising: a detection device; a first connection element electrically connected to a supply tap; a second connection element having an electrical potential of the motor vehicle; and an insulating layer arranged between the first connection element and the second connection element, each of the connection elements having at least one receptacle with a sidewall; wherein the detection device has a semiconductor element, a base element and a head element, the base element being made from electrically conductive material and having a receptacle, the semiconductor element being directly arranged in the receptacle of the base element, the base element being directly connected to the semiconductor element, and the base element of the detection device being fit within at least one receptacle of the connection elements wherein the base element is flush against the sidewall of the at least one receptacle, and wherein in the case of a polarity reversal, the first connection element is electrically connected to the second connection element via the detection device.