Patent ID: 8189315

Claim:
A surge arrester, comprising: an insulating body; a first side electrode and a second electrode extending into an interior space formed by the insulating body; a central electrode, wherein an end-side distance between the first and second side electrodes is greater than distances between a respective side electrode and the central electrode, and wherein a distance between the first and second side electrodes is less than a distance between end regions of the central electrode and a base of the side electrodes; and a plurality of ignition strips located at an inner wall of the insulating body, the ignition strips extending into a space behind the central electrode but not extending beyond a center of the surge arrester; wherein the first and second side electrodes each comprise a first part and a second part made of different metals and/or alloys, the first part having a base and a pin-shaped part, the second part being a disk, the base having a diameter chosen so as to guide the electrode in the insulating body, the base and the pin-shaped part being located inside the insulating body.