The invention relates to a horn spark gap having a deion chamber in non-discharging design comprising an insulating material housing as a supporting and receiving body for the horn electrodes and the deion chamber and means for guiding the gas stream induced by the arc, wherein the horn electrodes have an asymmetrical shape, comprising a longer and a shorter electrode, and in the ignition area the two electrodes extend virtually in parallel or with little divergence. The arc runner area is delimited between the electrodes in the direction of the deion chamber. The housing has sections which accommodate at least one deion chamber part, apertures or openings being provided in the housing and the electrodes leading to the deion chamber part, such that the gas stream reaches the deion chamber. According to the invention, at least two horn spark gaps are located in the housing, which have electric connections led out separately for the optional series or parallel connection of the horn spark gaps integrated in the
