Digital Grid Digital Grid


Overcurrent Protection Device


SIPROTEC 5 base module with large display

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    The feeder and overcurrent protection SIPROTEC 7SJ85 is part of the new SIPROTEC 5 series of modular, flexible and intelligent digital field devices.
    With its modularity and flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SJ85 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems.

    Main function:

    Feeder and overcurrent protection
    for all voltage levels

    Inputs and outputs:

    5 predefined standard variants with
    4 current transformers, 4 voltage transformers,
    11 to 59 binary inputs, 9 to 33 binary outputs

    Hardware flexibility:

    Flexible, adaptable and expandable I/O quantity structure within the scope of the modular
    SIPROTEC 5 building blocks,
    1/6 expansion
    modules can be addedAvailable with large or small display or without display

    Width of housing:

    1/3 x 19'' to 2/1 x 19''

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