Generator connection box Type 12 for photovoltaic systems for connecting x strings. For DC protection of the inverter. Varistor surge protector, pluggable, with disconnection device in fault-resistant Y-circuit according to VDE 0100-712 50539-12. Low DC protection level: 3.0 kV Uoc max 900 DC. Protection devices with push-in terminals pre-installed in the housing, up to 41 DC per terminal. Polycarbonate housing IP67, UV-resistant for outdoor use, including cable gland set and pressure equalization element. Additional measures may be necessary in case of the risk of condensation due to wind, ice, temperature, or sunlight! PVG-BC 900K 110.