Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors (IEC 60947-7-4:2019); German version EN IEC 60947-7-4:2019
低压开关设备和控制设备.第7-4部分:辅助设备.铜导线用PCB接线板(IEC 60947-7-4-2019);德国版本EN IEC 60947-7-4:2019