Further information for Dehn + Soehne 920224 - DEHN combined SPD module BLITZDUCTOR XT 920 224
Space-saving combined surge arrester module with LifeCheck for protecting 2 individual wires with a common reference potential and asymmetrical interfaces, optionally direct or indirect shield earthing. LifeCheck detects thermal or electrical overload conditions after which the surge arrester must be replaced. The indication is made contactless using DEHNrecord LC / SCM / MCM.