قطع کننده مدار 3VA2 IEC قاب 1250 ظرفيت شکست کلاس M Icu=55kA @ 415 V 3-pole, line protection ETU320, LI, In=1250A حفاظت اضافه بار Ir=500A …1250A حفاظت اتصال کوتاه Ii=1,5…10 x در کيت نگهدارنده مهره
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