Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output (IEC 60947-5-7:2003); German version EN 60947-5-7:2003
低压开关设备和控制设备第5-7部分:控制电路装置和开关元件模拟输出接近装置的要求(IEC 60947-5-7-2003);德文版EN 60947-5-7:2003