surge arrester

surge arrester applied for single-phase,three-phase surge protection under various power supply system through different combinations.Applicable for B,C,D class protection,it adapts to LPZ1-LPZ2 LPZ3 lightning protection area.
   
Rated voltage Un (V~)220/380
Continuous voltage Uc (V~)275/320385/420
Standard discharge current  In(KA)10 8/20µS
Max current capacity Imax(KA)20 8/20µS
Response time (ns)< 25
Protection level< 1.4/1.5< 1.8/1.9