DEHNshield®, multi-pole, application-optimized combined arrester for protecting low-voltage consumer systems against overvoltages, even in the event of direct lightning strikes. Can be used in accordance with the lightning protection zone concept at the interfaces 0A - 2, arrester type 1 in accordance with EN 61643-11: ready-to-connect combined arrester based on spark gaps, space-saving for use in compact and simply equipped electrical installations with reduced technical requirements, for protecting residential buildings and for use in special applications, enables single-device protection, arrester capacity up to 50 kA (10/350), function/fault indication by red-green marking in the viewing window, high follow current extinguishing capacity, ready-to-connect, application-optimized combined arrester for single-phase TT and TN systems (circuit variant 1+1).