Multipole combined surge arrester type 1 + type 2 for photovoltaic generator circuits DEHNcombo YPV, type 1 + type 2 according to EN 61643-31 with 3-stage DC switching device. Combined disconnection and short-circuiting device. For protecting photovoltaic inverters against overvoltages, even in the event of direct lightning strikes. For use in accordance with IEC 60364-7-712:2002-05 (installation of photovoltaic supply systems).