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Digitrip 1150 & 520 Trip Curve Calculator (Time Saver)

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    Digitrip 1150 & 520 Trip Curve Calculator (Time Saver)

    Automated excel sheets calculate trip times for the EATON Digitrip 1150 and 520 trip units, based on settings you input. This is a very useful tool as it saves a bunch of time having to manually look up curves.

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    1. Select current sensor size from the pull down menu, choose "5" for Amptector testing.

    2. Enter test current multiplier for Long Time Delay (ex. 3 or 6)

    3. Choose trip unit settings for Long, Short, Instantaneous, and Ground Fault functions where applicable from the pull down menus. The sheet will automatically calculate your test current and expected min/max trip times.

    Tables showing available trip settings and times for all functions are also included. This is a very useful tool that will save you many headaches in the field. Downloads are available through the attachment links below, big thanks to JG for sending these out.
    Attached Files Attached Files


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