An overvoltage protection arrangement comprising a horn spark gap located in an insulating housing, with a deionization chamber (4) for arc quenching, wherein the deionization chamber (4) has a plurality of spaced quench plates (9) and a trigger electrode (7) is located in the ignition region of the horn spark gap (1), characterized in that a disconnecting device comprises a fusible link (8) that is located in the region of the deionization chamber (4) and is exposed there to a loading of a power follow-on current, wherein the fusible link (8) holds a slider-like disconnecting element (15) in a first position, and on melting releases this disconnecting element (15) in such a way that the disconnecting element (15) adopts a second position wherein, on reaching the second position, an electrical switching connection to the trigger electrode (7) is interrupted and the trigger electrode (7) is thereby disconnected.