Single-pole DEHNvenCI combined lightning current and surge arrester (type 1 + type 2 according to EN 61643-11) with integrated backup fuse. Maximum availability due to RADAX FLOW follow current limitation. Capable of protecting terminal equipment. For protecting low-voltage consumer's installations against surges and even direct lightning strikes. For installation in conformity with the lightning protection zone concept at the boundaries from 0A - 2.