UL General-Use Circuit Ampacity Reference Chart
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Circuit-conductor ampacity and voltage rating for jacketed cords in general-use cord sets and power-supply cords per UL guidance
| Types of Cord |
Gauge Size Range |
Number of Cord Conductors |
Number of Current Carrying Conductors1 |
Ampacity of Current-Carrying Conductors (amperes) |
Voltage Rating of Cord |
0 - 50 ft. (0 - 15.2 m) |
Over 50 ft. (Over 15.2 m) |
|
|
18 AWG |
2, 3 or 4 3 or 4 |
2 3 |
10 Amps 7 Amps |
7 Amps 5.6 Amps |
600 Volts AC |
| 16 AWG |
2, 3 or 4 3 or 4 |
2 3 |
13 Amps 10 Amps |
10 Amps 7 Amps |
600 Volts AC |
| 14 AWG |
2, 3 or 4 3 or 4 |
2 3 |
18 Amps 15 Amps |
13 Amps 10 Amps |
600 Volts AC |
| 12 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
25 Amps 20 Amps |
18 Amps 15 Amps |
600 Volts AC |
| 10 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
30 Amps 25 Amps |
25 Amps 20 Amps |
600 Volts AC |
| 8 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
40 Amps 35 Amps |
30 Amps 25 Amps |
600 Volts AC |
| 6 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
55 Amps 45 Amps |
40 Amps 35 Amps |
600 Volts AC |
| 4 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
70 Amps 60 Amps |
55 Amps 45 Amps |
600 Volts AC |
| 2 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
95 Amps 80 Amps |
70 Amps 60 Amps |
600 Volts AC |
|
|
18 AWG |
2, 3 or 4 3 or 4 |
2 3 |
10 Amps 7 Amps |
7 Amps 5.6 Amps |
300 Volts AC |
| 16 AWG |
2, 3 or 4 3 or 4 |
2 3 |
13 Amps 10 Amps |
10 Amps 7 Amps |
300 Volts AC |
| 14 AWG |
2, 3 or 4 3 or 4 |
2 3 |
18 Amps 15 Amps |
13 Amps 10 Amps |
300 Volts AC |
| 12 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
25 Amps 20 Amps |
18 Amps 15 Amps |
300 Volts AC |
| 10 AWG |
2, 3 or 4 3, 4 or 5 |
2 3 |
30 Amps 25 Amps |
25 Amps 20 Amps |
300 Volts AC |
|
|
18 AWG |
2 or 3 |
2 |
10 Amps |
7 Amps |
300 Volts AC |
| 17 AWG |
2 or 3 |
2 |
12 Amps |
10 Amps |
300 Volts AC |
| 16 AWG |
2 or 3 |
2 |
13 Amps |
10 Amps |
300 Volts AC |
| 1A conductor that is used to carry an unbalanced current from the other conductors is not considered to be a current carrying conductor. |