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按钮
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{{Infobox person
| 姓名 = 按钮
|圖片 = [[ File:T0151ec9db527764231T01e45fafc7fd2e39cd.jpg|缩略图|居中|250px|[httphttps://p9image.qhimgso.com/t0151ec9db527764231.jpgview?sizeq=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&src=tab_www&correct=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&ancestor=list&cmsid=7563231473999bcd372938931ec1751b&cmras=0&cn=0&gn=0&kn=0&fsn=60&adstar=0&clw=254#id=b45170084053fda437a70354d8559172&prevsn=1066x1600 0&currsn=60&ps=120&pc=60 原圖鏈接][http://shwww.qihoo1718world.com/pcziliao/201407/11/90f16875c7a284027?cota=1 ziliao-7997.html 来自 光发娱乐仪器仪表网]]]
}}
'''按钮'''是一种短时接通或断开小电流电路的电器，它不直接控制主电路的通断，而在控制电路中发出手动“指令”去控制接触器、继电器等电器，再由它们去控制主电路，故称“主令电器”。<ref>[http://www.plc100.com/jichu/dianqi/SB.htm 按钮开关（SB）的外观、结构参数及安装使用],PLC之家网，2019-12-25</ref>
=='''主要结构'''==
[[ File:T0151ec9db527764231257.jpg|缩略图|居中|250px|[httphttps://p9image.qhimgso.com/t0151ec9db527764231.jpgview?sizeq=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&src=tab_www&correct=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&ancestor=list&cmsid=7563231473999bcd372938931ec1751b&cmras=0&cn=0&gn=0&kn=0&fsn=60&adstar=0&clw=1066x1600 254#id=2b99979df95e838b38f537ce6678b98f&currsn=0&ps=60&pc=60 原圖鏈接][http://shspro.qihooso.com/pcsearchthrow/api/midpage/90f16875c7a284027throw?cotals=s112c46189d&lm_extend=ctype:3&ctype=3&q=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&rurl=http%3A%2F%2Fwww.gongkong.com%2Farticle%2F201501%2F56858.html&img=http%3A%2F%2Fnfs.gongkong.com%2Fzhikuziliao%2Ftec%2F257.jpg&key=t0137e6501f340db778.jpg&s=1 1582378963781 来 自光发娱乐自360搜索]]]
按钮开关的结构：由按钮帽、复位弹簧、固定触点、可动触点、外壳和支柱连杆等组成。
=='''分类介绍'''==
[[ File:T0151ec9db527764231.jpg|缩略图|居中|250px|[httphttps://p9image.qhimgso.com/t0151ec9db527764231.jpgview?sizeq=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E7%BB%93%E6%9E%84&src=srp&correct=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E7%BB%93%E6%9E%84&ancestor=list&cmsid=4ad6807a82aab8c38556bcd8eeeb1388&cmras=0&cn=0&gn=0&kn=0&fsn=60&adstar=0&clw=254#id=1066x1600 f1dc5cae59523392a2dc31300c7e45b0&currsn=0&ps=59&pc=59 原圖鏈接][http://shspro.qihooso.com/pcsearchthrow/api/midpage/90f16875c7a284027throw?cotals=s112c46189d&lm_extend=ctype:3&ctype=3&q=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E7%BB%93%E6%9E%84&rurl=http%3A%2F%2Fwww.chinabaike.com%2Ft%2F35747%2F2015%2F0909%2F3201316.html&img=http%3A%2F%2Fwww.chinabaike.com%2Fuploads%2Fallimg%2F150909%2F032SRP8-2.jpg&key=t0198ef496afa637d15.jpg&s=1 1582380018634 来 自光发娱乐自360搜索]]]
===按用途和触头的结构不同分类===
===按操作方式防护方式分类===
[[ File:T0151ec9db527764231095617 791895 1950668.jpg|缩略图|居中|250px|[httphttps://p9image.qhimgso.com/t0151ec9db527764231.jpgview?sizeq=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&src=tab_www&correct=%E6%8C%89%E9%92%AE%E5%BC%80%E5%85%B3%E6%8A%80%E6%9C%AF%E5%8F%82%E6%95%B0&ancestor=list&cmsid=7563231473999bcd372938931ec1751b&cmras=0&cn=0&gn=0&kn=0&fsn=60&adstar=0&clw=254#id=1066x1600 dc1f6572ee1b22877723eed362e17c7c&currsn=0&ps=60&pc=60 原圖鏈接][httphttps://shb2b.qihoo88152.com/pc/90f16875c7a284027?cota=1 show-1685734.html 来自 光发娱乐中国电器网]]]
1、开启式：适用于嵌装固定在开关板、控制柜或控制台的面板上。代号为K。