?????????耐高溫行程開(kāi)關(guān)?NHD2??概述:??????耐高溫行程開(kāi)關(guān)NHD2為滾輪(橫)柱塞型,通過(guò)碰撞行程頂部的滾輪,使滾輪往下壓,從而使開(kāi)關(guān)的觸點(diǎn)動(dòng)作而實(shí)現電路的切換。耐高溫行程開(kāi)關(guān)整體外部為全金屬鋁合金材質(zhì),它的開(kāi)關(guān)內部采用耐高溫材料澆鑄成的全封閉觸點(diǎn)開(kāi)關(guān),一組常開(kāi)一組常閉允許電流5...
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