Three-pole air gap type trigger device and surge protection device

The utility model provides a three-pole air gap type trigger device and a surge protection device. The three-pole air gap type trigger device comprises a trigger discharge circuit, an air gap and a surge discharge bin, the trigger discharge circuit comprises a trigger and a discharger which are connected in series, the discharger is communicated with the discharge bin, and the space of the discharger and the air gap forms the surge discharge bin. The three-pole air gap type trigger device and the surge protection device provided by the utility model have the advantage of shorter response time. 本实用新型提供一种三极空气间隙型触发装置及电涌保护器。本实用新型提供的三极空气间隙型触发装置，包括触发放电电路、空气间隙和电涌放电仓，所述触发放电电路包括触发器和放电器串联得到，所述放电器与所述放电仓连通，所述放电器与所述空气间隙的空间形成所述电涌放电仓。本实用新型提供的三极空气间隙型触发装置及电涌保护器具有较快的响应时间。