
Electromechanical all-or-nothing relays Part 53: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts, 14 mm x 9 mm base
出版:International Electrotechnical Committee

专家解读视频
Electromechanical all-or-nothing relays Part 53: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts, 14 mm x 9 mm base
出版:International Electrotechnical Committee
专家解读视频