Zinc-oxide varistor 1.Used:arrester and insulators 2.Diameter:35mm 3.Residual Voltage at1mA 4.5-5KV 4.used for arrester Zinc-oxide varistorMetal Oxide Varistor is the core of the arrester.Metal Oxide Varistor is the core of the arrester, which main component is Zinc Oxide and with a small quantity of bismuth Oxide, fluoride oxide, manganous carbonate, antimony oxide and other gleam of additive ...