Combined type 2 & 3 devices suitable for TT, TN-S & TN-C-S (PME). Din rail mountable. Visual and remote end of life indicators. Plug-in format (3 phase version only) with reversable chassis to allow cable entry from above or below. Mechanically coded cartridges (3 phase version only) to avoid cartridge replacement errors.
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SPD 1 Module Type 2/3 Single Phase TT/TN + Alarm contact