Draft Document - Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches (IEC 17B/1733/CDV:2011); German version EN 60947-5-2:2007/FprA1:2011
文件草案-低压开关设备和控制设备-第5-2部分:控制电路设备和开关元件-接近开关(IEC 17B/1733/CDV:2011);德文版EN 60947-5-2:2007/FprA1:2011