Surge arrester T2 1P 40kA TNC fault indication + contact. Single-channel surge arrester with high-performance varistor type 2, for protecting single-phase and multi-phase networks. Independent thermal monitoring of the varistor. Disconnection from the network and optical fault indication on the plug in the event of overload. Additional changeover contact for remote fault indication. Two-part module that can be connected in series, consisting of a base element and protective plug. Biconnect terminals for connecting round conductors and wiring bridges. Labeling option on the base element.