Types of Cord |
Size of Conductors in Cord |
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) |
| S, SO, SOO, ST, STO, STOO, SE, SEO, or SEOO |
18 |
2, 3 or 4
3 or 4 |
2
3 |
10
7 |
7
5.6 |
600
600 |
16 |
2, 3 or 4
3 or 4 |
2
3 |
13
10 |
10
7 |
600
600 |
14 |
2, 3 or 4
3 or 4 |
2
3 |
18
15 |
13
10 |
600
600 |
12 |
2, 3 or 4
3, 4 or 5 |
2
3 |
25
20 |
18
15 |
600
600 |
10 |
2, 3 or 4
3, 4 or 5 |
2
3 |
30
25 |
25
20 |
600
600 |
8 |
2, 3 or 4
3, 4 or 5 |
2
3 |
40
35 |
30
25 |
600
600 |
6 |
2, 3 or 4
3, 4 or 5 |
2
3 |
55
45 |
40
35 |
600
600 |
4 |
2, 3 or 4
3 or 4 |
2
3 |
70
60 |
55
45 |
600
600 |
2 |
2, 3 or 4
3, 4 or 5 |
2
3 |
95
80 |
70
60 |
600
600 |
| SJ, SJO, SJOO, SJT, SJTO, SJTOO, SJE, SJEO, or SJEOO |
18 |
2, 3 or 4
3 or 4 |
2
3 |
10
7 |
7
5.6 |
300
300 |
16 |
2, 3 or 4
3 or 4 |
2
3 |
13
10 |
10
7 |
300
300 |
14 |
2, 3 or 4
3 or 4 |
2
3 |
18
15 |
13
10 |
300
300 |
12 |
2, 3 or 4
3 or 4 |
2
3 |
25
20 |
18
15 |
300
300 |
10 |
2, 3 or 4
3 or 4 |
2
3 |
30
25 |
25
20 |
300
300 |
| SV, SVO, SVOO, SVT, SVTO, SVTOO, SVE, SVEO, or SVEOO |
18 |
2 or 3 |
2 |
10 |
7 |
300 |
17 |
2 or 3 |
2 |
12 |
10 |
300 |
| 1A conductor that is used to carry an unbalanced current from the other conductors is not considered to be a current carrying conductor. |
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