DIN EN 61811-51:2002-11
Отменен
Electromechanical all-or-nothing relays - Part 51: Blank detail specification; Electromechanical all-or-nothing telecom relays of assessed quality; Non-standardized types and construction (IEC 61811-51:2002); German version EN 61811-51:2002
— 27 стр.
