常用小型继电器原理及底座接线图教学教材.doc

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1、常用小型继电器原理及底座接线图常用小型继电器有直流式和交流式，其外形一样，其触点一般为两组常开两组常闭或四组常开四组常闭，对应的插座也比较统一，但有时印刷的号码不是很清楚，为了使大家清晰的掌握对应接线关系，防止错接，现将其电器原理图和实物接线图提供给大家参考。注意事项：对于直流电源工作方式的继电器应将14号端子接正极，13号端子接负极，这样发光二极管才能亮，接反则不亮，当然接反了也比影响动作效果。对于交流电源工作方式的继电器则没有极性之分，二极管一定亮。一，胡宝林putineachblanktherightformo

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