DIN EN 60947-5-5:2005 低压开关设备和控制设备.第5-5部分:控制电路器件和切换元件.具有机械锁扣功能的电气紧急故障中断器件
Low-voltage switchgear and controlgear - Part 5-5: Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function (IEC 60947-5-5:1997 + A1:2005); German version EN 60947-5-5:1997 + A1:2005