The MidNite Solar Surge Protector Device (MNSPD) is a Type 2 device per
UL1449 rev3. It is designed for both AC and DC systems and provides
protection to service panels, load centers or where the SPD is directly
connected to the electronic device requiring protection.
MidNite Solar 600V Surge Protector Device (MNSPD). Protection for grid-tie PV combiners and inverter input circuits. Listed by ETL for US & Canada.