Iyo ine otomatiki voltage detector iyo inodzivirira dunhu, kungave kana iri overvoltage kana undervoltage. Ichazvivhara zvakare pakarepo kana dunhu radzoka zvakajairika voltage. Iyi ndiyo mhinduro yakakwana kune chaiyo yedunhu inoshanduka, sezvo iri diki saizi, uye MCB yakavimbika chaizvo.

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Auto: HW-MN ichaongorora mutsara wemagetsi otomatiki, uye ichafamba kana voltage yapera kana pasi peyakajairika rated voltage.