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Electrical

Conduit Fill

Checks total conductor cross-section against the internal area of the conduit and the code fill limit.

NEC Chapter 9 Table 1 · 40% for 3+ conductors

Inputs

Results

Fill percentage

49 %

Exceeds limit

Max conductors at limit

4

Conduit internal area
0.866 in²
Conductor area (total)
0.424 in²
Spare capacity
-0.078 in²