Intrerupator diferential tetrapolar 40a 30ma Siemens
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Intrerupator diferential tetrapolar 40a 30ma Siemens .Asigura ,numai , protectie la scurgeri de curent -30ma.Pentru o protectie completa la scurt circuit ,supra sarcina si diferential se va cupla cu o siguranta automata tripolara sau tetrapolara .Se monteaza pe sina omega ,ocupa 4 module .
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