Finder 7P.21.8.440.0020 7P2184400020 Surge arrester Surge protection for: Switchboards 1 pc(s)

Surge suppressor type 2, Varistor module interchangeable, for 1-phase TN-S and TT-networks (400 V) between L - N, L - PE or N - PE, for 1-phase TN-C networks between L - PEN. Varistor defect display through "red" in the viewing window, width 17.8 mm.

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