275V Surge Protective Device/Surge Protector

   TRS-D Series surge protective device( hereinafter referred to as SPD) are suitable for AC 50/60Hz, rated voltage up to 380v IT,TT,TN-C, TN-S,TN-C-S and other power supply system,  it protect to indirect and direct lightning effect or other transient over voltage     SPD design according with GB18802.1/IEC61643-1 standard.Main technical parametersMain technical parametersTRS-D20Max continuous operating voltage  Uc(VAC)385Voltage protection level  Up(kV)≤1.5Max discharge current (8/20μS)  lmax(kA)20Nominal discharge current (8/20μS)  ln(kA)10Response time ns