Input Parameters

Results

--
Total Conductor Area
in²
--
Max Fill Area (40%)
in²
--
Minimum Raceway Size
in
--
Actual Fill
%
Note: NEC Chapter 9 Table 1 specifies maximum fill percentages. Use THWN-2 wire area from Table 5. EMT is most common for exposed PV wiring.

Reference

Total Area = (N_conductors x Wire Area) + Ground Area Fill: 1 wire = 53%, 2 wires = 31%, 3+ = 40% Required Raceway Area = Total Area / Fill% Per NEC Chapter 9, Tables 4 & 5