Wire Size AWG |
Minimum Conduit Size (Inches) Per Number of Type TW Wires |
||||
|---|---|---|---|---|---|
| Number of Wires Inside Conduit | |||||
| 2 | 3 | 4 | 5 | 6 | |
| 14 | ½" | ½" | ½" | ½" | ½" |
| 12 | ½" | ½" | ½" | ½" | ½" |
| 10 | ½" | ½" | ½" | ½" | ¾" |
| 8 | ½" | ¾" | ¾" | 1" | 1" |
| 6 | ¾" | 1" | 1" | 1¼" | 1¼" |
| 4 | 1" | 1" | 1¼" | 1¼" | 1½" |
| 2 | 1" | 1¼" | 1¼" | 1½" | 2" |
| 1/0 | 1¼" | 1½" | 2" | 2" | 2½" |
| 2/0 | 1½" | 2" | 2" | 2½" | 2½" |
| 3/0" | 1½" | 2" | 2" | 2½" | 2½" |
| See the National Electrical Code for conduit sizes when using wire types other than Type TW. | |||||