|
| |
Maximum Number of Conductors in
Electrical Metalic Tubing |
Type |
Conductor |
Trade Size (in.) |
THHN,
THWN,
THWN-2 |
Size
(AWG /
kcmil) |
½ |
¾ |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
3½ |
4 |
14
12
10
8 |
12
9
5
3 |
22
16
10
6 |
35
26
16
9 |
61
45
28
16 |
84
61
38
22 |
138
101
63
36 |
241
176
111
64 |
364
266
167
96 |
476
347
219
126 |
608
443
279
161 |
6
4
3
2
1 |
2
1
1
1
1 |
4
2
1
1
1 |
7
4
3
3
1 |
12
7
6
5
4 |
16
10
8
7
5 |
26
16
13
11
8 |
46
28
24
20
15 |
69
43
36
30
22 |
91
56
47
40
29 |
116
71
60
51
37 |
1/0
2/0
3/0
4/0
250 |
1
0
0
0
0 |
1
1
1
1
0 |
1
1
1
1
1 |
3
2
1
1
1 |
4
3
3
2
1 |
7
6
5
4
3 |
12
10
8
7
6 |
19
16
13
11
9 |
25
20
17
14
11 |
32
26
22
18
15 |
300
350
400
500
600 |
0
0
0
0
0 |
0
0
0
0
0 |
1
1
0
0
0 |
1
1
1
1
1 |
1
1
1
1
1 |
3
2
1
1
1 |
5
4
4
3
2 |
7
6
6
5
4 |
10
9
8
6
5 |
13
11
10
8
7 |
700
750
800
900
1000 |
0
0
0
0
0 |
0
0
0
0
0 |
0
0
0
0
0 |
1
0
0
0
0 |
1
1
1
1
1 |
1
1
1
1
1 |
2
1
1
1
1 |
3
3
3
3
2 |
4
4
4
3
3 |
6
5
5
4
4 |
|
