Generator junction box type 2 for photovoltaic systems to connect 2 x 2 strings. For DC protection of the inverter. - Varistor arrester, pluggable, with disconnecting device in fault-resistant Y-circuit according to VDE 0100-712 (50539-12) - low DC protection level: < 4.0 kV (Uoc max = 1000 V DC) - 2 protection devices with 5 terminals each up to 6 mm² pre-installed in the housing, up to 41 A DC per terminal - Polycarbonate housing (IP66), UV-resistant for outdoor use, incl. cable gland set and pressure compensation element If there is a risk of condensation due to wind, ice, temperature or sun, additional measures may be required!