Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function
低压开关设备和控制设备.第5-5部分:控制电路装置和开关元件.具有机械闭锁功能的电气紧急停止装置
Is applicable to electrical control circuit devices and switching elements which are used to provide an emergency stop signal. Such devices may be either provided with their own enclosure, or installed according to the manufacturer's instructions.