Patent ID: 8072728

Claim:
Overvoltage protection device for protection of an electrical or electronic device, comprising: a housing, input and output terminal for electrical conductors, line paths which connect each input terminal element to a respective output terminal element, first arresters for symmetrical protection between the active conductors, each first arrester having first and second terminals, and second arresters for asymmetrical protection between the individual conductors and the ground potential, wherein each first arrester is connected by the first terminal thereof to a respective one of the line paths and by the second terminal thereof to a common connecting point so that the second terminals of the second arresters are at a common reference potential and symmetrical protection between two conductors is implemented by the first arresters being located in series with one another, wherein the common connecting point of the second terminals of the first arresters is ungrounded and is connected to a terminal element which is accessible from outside the housing so that the terminal element of one overvoltage protection device can be connected to the terminal element of another overvoltage protection device.