源轉(zhuǎn)換方案:在低電壓的情況下，可以產(chǎn)生-一個傳輸信號來傳送負(fù)荷，從額定源到備用源或是緊急電源。低電壓元件可以通過編程設(shè)為定時限延時特性。定義在電壓低于啟動值–定延時后定時限曲線動作。延時是可以10毫秒的步長在0到600.00秒之間調(diào)整。低電壓元件也以能過程序化使其具有反向延時特性。低電壓繼電器定值定義也圖所示的曲線族。

RELIANCE ELECTRIC 0-55701-422S USPP 055701422S

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RELIANCE ELECTRIC 0-51857 USPP 051857

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RELIANCE ELECTRIC 0-52012-2 USPP 0520122

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Reliance Electric 0-52874-1/ 0528741/528741