DIN EN 61811-53:2003-02
Отменен
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 (IEC 61811-53:2002); German version EN 61811-53:2002
— 31 стр.
