Nút nhấn dừng khẩn cấp: Loại khóa và loại mở chắc chắn
An emergency stop push button is a latching control device that stops a machine when a person hits it, and stays stopped until somebody deliberately resets it. Two properties make it different from every other button on the panel: it latches in the operated position, and its contact opens by positive mechanical action rather than […]
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