2022UNE-EN IEC 60947-5-2:2021/A11:2022 Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
2021UNE-EN IEC 60947-5-2:2021 Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches