Lightning and surge arrester type 1+2 for 40 mm busbar, 7.5 kA per path, 4-wire system, L1, L2, L3, PEN, exchangeable modules, optical fault indicator, holding system for the modules, can be used for the discharge of lightning currents up to 7.5 kA per pole, installation in the pre-meter area at the interface of zones LPZ 0 to LPZ 1, without leakage current and follow-on current, including overcurrent-protected 230 V power supply for RfZ / APZ according to VDE-AR-N 4100