How many 12 AWG THHN/THWN-2 fit in conduit
12 AWG THHN/THWN-2 is about 0.130 in across and 0.0133 sq in with its insulation (Chapter 9, Table 5). This is the most of it each conduit may hold, all the same size.
| Trade size | EMT | IMC | Rigid | PVC Sch 40 | PVC Sch 80 | Flex | Liquidtight | ENT |
|---|---|---|---|---|---|---|---|---|
| 3/8" | 3 | 5 | ||||||
| 1/2" | 9 | 10 | 9 | 8 | 6 | 9 | 9 | 8 |
| 3/4" | 16 | 17 | 16 | 15 | 12 | 16 | 16 | 15 |
| 1" | 26 | 29 | 26 | 25 | 20 | 24 | 26 | 25 |
| 1-1/4" | 45 | 49 | 46 | 43 | 37 | 38 | 46 | 43 |
| 1-1/2" | 61 | 67 | 62 | 59 | 51 | 56 | 59 | 59 |
| 2" | 101 | 109 | 102 | 99 | 86 | 98 | 97 | 99 |
| 2-1/2" | 176 | 154 | 146 | 141 | 124 | 147 | 146 | |
| 3" | 266 | 238 | 225 | 218 | 193 | 212 | 225 | |
| 3-1/2" | 347 | 318 | 301 | 293 | 261 | 289 | 292 | |
| 4" | 443 | 410 | 387 | 377 | 338 | 378 | 381 | |
| 5" | 608 | 594 | 537 | |||||
| 6" | 877 | 859 | 770 |
Empty cells: that type isn't made in that size.
Other sizes of THHN/THWN-2
#14#12#10#8#6#4#3#2#1#1/0#2/0#3/0#4/0250 kcmil300 kcmil350 kcmil400 kcmil500 kcmil600 kcmil700 kcmil750 kcmil800 kcmil900 kcmil1000 kcmil