Amp Capacities of Wire

| Amp Carrying
Capacities of Copper Wire |
| Not more
than 3 conductors in conduit, cable or buried in earth |
| Wire Size |
Amps |
Normally Fused at: |
Maximum Distance at 120
Volts |
Maximum Distance at 240
Volts |
| 14ga. |
15 |
15 |
30ft. |
60ft. |
| 12ga. |
20 |
20 |
35ft. |
70ft. |
| 10ga. |
30 |
30 |
35ft. |
75ft. |
| 8ga. |
50 |
40 |
45ft. |
90ft. |
| 6ga. |
65 |
50 |
55ft. |
115ft. |
| 4ga. |
85 |
70 |
n/a |
130ft. |
| 2ga. |
115 |
100 |
n/a |
140ft. |
| 1/0 |
150 |
125 |
n/a |
190ft. |
| 2/0 |
175 |
150 |
n/a |
190ft. |
| 3/0 |
200 |
200 |
n/a |
190ft. |
|