surge protector device Product DescriptionCAN-D20 series surge protection device (in short: SPD, ... surge arrester) is suitable for TN-S, TN-C-S, TT, IT etc. power supply system of ... D grade (class) lightning protection, CAN-D20 series surge protection device according to IEC61643-1, GB18802.1 ... of PE Line (mm2)10 mm2Fuse or Switch (A)10A~16AOperating Environment (centidegree)-40~+85Relative Humidity ( ...