Cam control switch elements for traction equipment 牵引设备用凸轮控制开关元件
Bilateral switching element 双向开关元件
The switch element selects an activity from a list of activities based on a condition Switch元素从基于条件的活动清单中选择一个活动。
Figure 2 - 1 shows the schematic representations for four major types of electrically controllable switching elements 图2 - 1所示为4种主要的电气控制切换元件的示意图。
Low - voltage switchgear and controlgear - control circuit devices and switching element - section 2 : proximity switches 低压开关设备和控制设备控制电路电器和开关元件第2部分:接近开关