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Created by Guest
Created on Nov 3, 2026

Allow TCC Curves to cut off at the symmetrical fault current

Today, time-current curve plots allow clipping at the momentary fault current, but the momentary fault current EasyPower puts on the plot is the asymmetrical fault current. Manufacturer TCCs and equipment ratings are presented in terms of symmetrical fault current, so it seems to me more appropriate to cut off the plot at the symmetrical fault current. Sources that I have found suggest symmetrical fault current is the more appropriate curve truncation point. Please either 1) allow users to select the symmetrical fault current as the TCC cutoff or 2) explain in the help documentation why asymmetrical fault current is used. Thank you.

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