Descarcator de supratensiuni,AC,cl.2,elem.modular inlocuibil TTV2-40-3P 230/400 V, 50 Hz, 20/40 kA (8/20 us), 3P

Descarcator de supratensiuni,AC,cl.2,elem.modular inlocuibil TTV2-40-3P 230/400 V, 50 Hz, 20/40 kA (8/20 us), 3P

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