1.lightning arresters 2.Secondary protection 3.using in the ... response time ,standard guide rail design, convenient installment, module deterioration indication, the thermal automatic release function, it can ... alternating voltageUn220VMaximum Discharge Current8/20uImax60KANominal Discharge CurrentIn40KAVoltage Protection LevelUp≤2.0KARespond TimetA≤25nsWorking Environment -40~+70°CProtection ModeL ...