IC697VRD008模块;
IC697VRD008模块;
IC697VRD008模块


接触器的作用是什么？根据结构特征如何区分交、直流接触器？
接触器的作用是控制电动机的启停、正反转、制动和调速等。
交流接触器的铁芯用硅钢片叠铆而成，而且它的激磁线圈设有骨架，使铁芯与线圈隔离并将线圈制成短而厚的矮胖型，这样有利于铁芯和线圈的散热。
直流接触器的铁芯通常使用整块钢材或工程纯铁制成，而且它的激磁线圈制成高而薄的瘦高型，且不设线圈骨架，使线圈与铁芯直接接触，易于散热。
　
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