A voltage surge protection device comprising a disconnection device with electric contacts said disconnection device comprising a first connecting electrode electrically connected with a first connecting strip, a second connecting electrode electrically connected with a second connecting strip, and a third switching electrode electrically connected to the second connecting strip. The protection device comprises a surge arrestor connected in series with a thermal disconnector between the third movable arc switching electrode and the second connecting strip. Said thermal disconnector comprises at least one fuse element extending between a first and second conducting radial wall of an arc extinguishing chamber, said arc extinguishing chamber comprising at least one conducting separator.