DIN EN 60947-5-4-2005
低压开关设备和控制设备.第5-4部分:控制电路器件和切换元件.低能量触头性能的评估方法.特殊试验
Low-voltage switchgear and controlgear - Part 5-4: Control circuit devices and switching elements - Method of assessing the performance of low-energy contacts - Special tests (IEC 60947-5-4:2002); German version EN 60947-5-4:2003