Surge Protection Device (SPD)

3-fold safe: the Hager combination arrester with the protective effect of type 1, type 2 and type 3 can be used in the pre-meter area. Hager type 2 surge arresters with their lower discharge capacity are connected downstream. And the Hager type 3 surge arresters with the lowest discharge capacity are installed as close as possible to the end device. Hager also offers special surge arresters for telephone and data lines.