IEC 60947-4-1 :2018 RLV现行
Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
出版：International Electrotechnical Committee
专家解读视频
EN IEC 60947-4-1:2019 - Identical
DS/EN IEC 60947-4-1:2019 - Identical
PN-EN IEC 60947-4-1:2019-05 - Identical
NEN EN IEC 60947-4-1 : 2019 - Identical
I.S. EN IEC 60947-4-1:2019 - Identical
EN IEC 60947-4-1:2019 - Identical
DS/EN IEC 60947-4-1:2019 - Identical
NEN EN IEC 60947-4-1 : 2019 - Identical
PN-EN IEC 60947-4-1:2019-05 - Identical
