... All products meet the standards of ISO9001and KEMA Series 1 Polymer Housed Metal-Oxide Surge Arrester without ... all ratings are available from 5kA to 10kA.Series 2 Polymer Housed with Different diameter sheds Metal ... gap,allratings are available from 5kA to 10kA. Series 4 Station Class Surge Arrester, 54~258kV,all ... If you interested in our products, please feel free to contact with us. We could send you ...