Enclosed Single Phase Neutral Protector, Type 1

The SPA211 is a two-pole, Type 1 and 2 MOV + GDT lightning arrester according to EN 61643-11 and IEC 61643-11. This arrester is recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0 – 1 (according to IEC 1312-1 and EN 62305) where it provides the equipotential bonding and discharge of both, the lightning current and the switching surge, which are generated in power supply systems entering the building. The use of this arrester is mainly in the power supply lines, which are operated as TN-S and TT systems. The main use of arrester is in structures of LPL III – IV according to EN 62305.