Class BLightning Surge Protector comes into zone from LPZ 0-1 to protect against lightning surge transient current discharge in 10350 µs. Complying IEC 61643-1 & UL 1449, Lightning Surge Protectors are designed to provide high level of protection where the risk of heavy surge current or even direct strike is high. This high performance surge protector has been designed based on the equipment coming under LPZ 0-1 for single phase & three phase line.