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Chinese Standard: GB/T 14048.20-2013

Low-voltage switchgear and controlgear—Part 5-8:Control circuit devices and switching elements—Three-position enabling switches

IDT  IEC 60947-5-8:2006

全国低压电器标准化技术委员会(SAC/TC 189)

本部分规定了三位使能开关的要求。
本部分适用于开关作为使能设备(见GB 5226.1—2008中10.9的规定)的元件使用,在下列情况下提供信号:
 1) 被激励时,允许机械运转由单独的起动控制引发,和
 2) 去激励时:
 a) 引发停止功能,和
b) 防止机械运转。

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