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hy981
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樓主  發(fā)表于: 2011-08-17 17:43
請問(wèn)我要用20A的電流，現在選40A的固態(tài)繼電器要用散熱器嗎，選用繼電器有沒(méi)有公式的
ymr78419972
宿命的輪回注定了要讓我們去追逐那些難以企及卻又十分向往的美麗
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1樓  發(fā)表于: 2011-08-27 16:52
40A建議還是加上吧，小電流可以考慮用機器本身散熱。
山河今仍在，壯志在何方？

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