How many 12 AWG THW/THW-2 fit in conduit
12 AWG THW/THW-2 is about 0.152 in across and 0.0181 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" | 1 | 4 | ||||||
| 1/2" | 6 | 7 | 7 | 6 | 4 | 7 | 7 | 6 |
| 3/4" | 11 | 13 | 12 | 11 | 9 | 11 | 12 | 11 |
| 1" | 19 | 21 | 19 | 18 | 15 | 18 | 19 | 18 |
| 1-1/4" | 33 | 36 | 33 | 32 | 27 | 28 | 33 | 32 |
| 1-1/2" | 45 | 49 | 45 | 44 | 38 | 41 | 43 | 44 |
| 2" | 74 | 80 | 75 | 72 | 63 | 72 | 71 | 72 |
| 2-1/2" | 129 | 113 | 107 | 103 | 91 | 108 | 108 | |
| 3" | 195 | 175 | 165 | 160 | 142 | 156 | 165 | |
| 3-1/2" | 255 | 234 | 221 | 215 | 192 | 212 | 215 | |
| 4" | 326 | 301 | 284 | 277 | 248 | 277 | 280 | |
| 5" | 446 | 436 | 394 | |||||
| 6" | 644 | 631 | 565 |
Empty cells: that type isn't made in that size.
Other sizes of THW/THW-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