Multipole DEHNventil modular combination arrester, type 1 + type 2 according to EN 61643-11 on spark gap basis, consisting of base part and plug-in protection modules. Highest system availability due to RADAX flow follow current limitation. Enables end device protection. For protecting low-voltage consumer equipment against surges, even in the event of direct lightning strikes. Can be used according to the lightning protection zone concept at interfaces 0A-2.