Single-pole, coordinated DEHNbloc Maxi S lightning current arrester, type 1 according to EN 61643-11, based on spark gaps with integrated arrester backup fuse for mounting on industrial busbar systems. High follow current extinguishing capacity and follow current limitation thanks to RADAX Flow technology. For protecting low-voltage consumer systems against overvoltages, even in the event of direct lightning strikes. For use in the lightning protection zone concept at the interfaces 0A - 1.