... being electric touching, indoor fixedly mounted. surge protective device, PD have only one side terminal, able ... mounted.LYD1-C series surge protective device (SPD) is usually be used in the IT, TT, TN-C, ... C surge protective device. SPD has two protection modes: MC and MD, SPD is in compliance with ... ns)Less than 25Protection gradeIP20ApplicationSecondary protection for in line surge protective device