The maximum permitted wire fill should not exceed 20%.
The following Table is based on the Zanara range of Raceways.Maximum Number of Type THHN Conductors Wire Size (AWG)
 
Cat.No 14 12 10 8 6
WW22 105 82 51 27 19

WW33

230 180 112 58 39

WW44

420 328 204 104 76

WW64

630 492 306 158 112

WW84

838 652 405 205 147

WW66

942 731 452 233 159

WW124

1250 980 592 311 206

WW96

1410 1086 672 348 228

WW126

1860 1420 930 450 310
WW184 1860 1420 930 450 310