This part of IEC 61811 is a blank detail specification applicable to electromechanical all-or-nothing telecom relays of assessed quality. Relays according to this standard are provided for operation in telecommunication applications. However, as electromechanical all-or-nothing relays, they are also suitable for particular industrial and other applications.
This standard selects from IEC 61810-7 and other sources the appropriate methods of test to be used in detail specifications derived from this specification, and contains basic test schedules to be used in the preparation of such specifications in accordance with IEC 61811-1.
IEC 61811-51:2002 history
2002IEC 61811-51:2002 Electromechanical all-or-nothing relays - Part 51: Blank detail specification; Electromechanical all-or-nothing telecom relays of assessed quality; Non-standardized types and construction
1997IEC 61811-51:1997 Electromechanical All-Or-Nothing Relays - Part 51: Blank Detail Specification - Electromechanical All-or-Nothing Telecom Relays of Assessed Quality - Non-Standardized Types and Construction (Edition 1.0; QC 160501)