For more than 100 years, Toshiba has been a global pioneer in surge arrester technology—starting with the installation of its first arrester in 1911. Today, our high-voltage surge arresters, ranging from 69 kV to 765 kV, are engineered to deliver superior protection across a wide range of applications, including gas insulated substations, porcelain and polymer-type installations, and transmission lines.
Powered by advanced zinc-oxide elements, Toshiba surge arresters combine high performance with a compact, lightweight design—reducing shipping costs and minimizing installation space without compromising reliability. With a legacy of innovation and proven durability, Toshiba continues to set the standard for surge protection in modern power systems.