線圈額定電壓的選擇 線圈額定電壓不一定等于主觸頭的額定電壓,當線路簡單,使用電器少時,可直接選用380V或220V的電壓,如線路復雜,使用電器超過5h,可用24V、48V或110V電壓(1964年規(guī)定為36V、110V、或127V)的線圈.
3拍合式器
拍合式器主要應用在鋼鐵工業(yè)，如：牽引機、電解和起重設備，電流從63A 至 5000A。
產(chǎn)品概述 R 系列器在一個主框架上構造，支持電磁特性、主極和輔助觸頭。此設計為器的制作帶來很大的靈活性，有如定制的器般靈活： 可按需求改變極數(shù) 帶 / 不帶排氣線圈的極，額定電流流過每一極 常開極 當常閉極與常開極結合使用時，可設置 '先合后分' 或 '先分后合' 大量、定時、可調(diào)的常開和常閉輔助觸頭 帶特殊特性的電磁特性由控制供電電壓和應用特性決定
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