This part of IEC 61811 is a sectional specification and applies to electromechanical all-ornothing
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. Detailed test schedules are
contained in the blank detail specifications supplementary to this specification.
BS EN 61811-50:2002 history
2015BS EN 61811-1:2015 Electromechanical telecom elementary relays of assessed quality. Generic specification and blank detail specificatio
2002BS EN 61811-50:2002 Electromechanical all-or-nothing relays - Sectional specification - Electromechanical all-or-nothing telecom relays of assessed quality