IEC PAS 61811-55:2000 Electromechanical all-or-nothing relays - Part 55: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts, 11 mm * 7, 5 mm (max.) base was changed to IEC 61811-55:2002 Electromechanical all-or-nothing relays - Part 55: Blank detail specification - Electromechanical all-or-nothing telecom relays of assessed quality - Two change-over contacts@ 11 mm × 7@5 mm (max.) base (Edition 2.0).
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