surge protector Rated voltage Un (V~) 230/400 Continuous voltage Uc (V~) 385 420 Rated Current 5KA-100KA surge protector 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 lightning protection area. Surge Protector