Multipole combined surge arrester DEHNventil modular, type 1 + type 2 according to EN 61643-11 on a spark gap basis, consisting of a base part and plugged-in protection modules. Maximum system availability thanks to RADAX-Flow follow current limitation. Enables terminal equipment protection. For protecting low-voltage consumer systems against overvoltages, even in the event of direct lightning strikes. Can be used according to the lightning protection zone concept at the interfaces 0A - 2.