IEC 61811-1 Amd.1 Ed. 2.0 b:2025
IEC 61811-1 Amd.1 Ed. 2.0 b:2025 Amendment 1 - Electromechanical telecom elementary relays of assessed quality - Part 1: Generic specification and blank detail specification
Amendment byInternational Electrotechnical Commission , 12/01/2025
