|
Conduit Fill
Chart
The following table is
provided for your convenience. We believe that the data presented is
reliable, however we make no claim as to the accuracy of the information.
Conduit
Size |
Conduit
Type |
Wire Conductor Size (THWN, THHN) AWG/kcmil |
| 14 |
12 |
10 |
8 |
6 |
4 |
3 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
250 |
300 |
350 |
400 |
500 |
600 |
700 |
750 |
| 1/2 |
EMT |
12 |
9 |
5 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
IMC |
14 |
10 |
6 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
GRC |
13 |
9 |
6 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
| 3/4 |
EMT |
22 |
16 |
10 |
6 |
4 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
IMC |
24 |
17 |
11 |
6 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
GRC |
22 |
16 |
10 |
6 |
4 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
|
| 1 |
EMT |
35 |
26 |
16 |
9 |
7 |
4 |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
|
IMC |
39 |
29 |
18 |
10 |
7 |
4 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
|
GRC |
36 |
26 |
17 |
9 |
7 |
4 |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
|
|
| 1-1/4 |
EMT |
61 |
45 |
28 |
16 |
12 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
IMC |
68 |
49 |
31 |
18 |
13 |
8 |
6 |
5 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
GRC |
63 |
46 |
29 |
16 |
12 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
| 1-1/2 |
EMT |
84 |
61 |
38 |
22 |
16 |
10 |
8 |
7 |
5 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
IMC |
91 |
67 |
42 |
24 |
17 |
10 |
9 |
7 |
5 |
4 |
4 |
3 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
GRC |
85 |
62 |
39 |
22 |
16 |
10 |
8 |
7 |
5 |
4 |
3 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| 2 |
EMT |
138 |
101 |
63 |
36 |
26 |
16 |
13 |
11 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
|
IMC |
149 |
109 |
68 |
39 |
38 |
17 |
15 |
12 |
9 |
8 |
6 |
5 |
4 |
3 |
3 |
2 |
2 |
1 |
1 |
1 |
1 |
|
GRC |
140 |
102 |
64 |
37 |
27 |
16 |
14 |
11 |
8 |
7 |
6 |
5 |
4 |
3 |
3 |
2 |
2 |
1 |
1 |
1 |
1 |
| 2-1/2 |
EMT |
241 |
176 |
111 |
64 |
46 |
28 |
24 |
20 |
15 |
12 |
10 |
8 |
7 |
6 |
5 |
4 |
4 |
3 |
2 |
2 |
1 |
|
IMC |
211 |
154 |
97 |
56 |
40 |
25 |
21 |
17 |
13 |
11 |
9 |
7 |
6 |
5 |
4 |
4 |
3 |
3 |
2 |
1 |
1 |
|
GRC |
200 |
146 |
92 |
53 |
38 |
23 |
20 |
17 |
12 |
10 |
8 |
7 |
6 |
5 |
4 |
3 |
3 |
2 |
1 |
1 |
1 |
| 3 |
EMT |
364 |
226 |
167 |
96 |
69 |
43 |
36 |
30 |
22 |
19 |
16 |
13 |
11 |
9 |
7 |
6 |
6 |
5 |
4 |
3 |
3 |
|
IMC |
362 |
238 |
150 |
86 |
62 |
38 |
32 |
27 |
20 |
17 |
14 |
12 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
3 |
3 |
|
GRC |
309 |
225 |
142 |
82 |
59 |
36 |
31 |
26 |
19 |
16 |
13 |
11 |
9 |
7 |
6 |
5 |
5 |
4 |
3 |
3 |
3 |
| 3-1/2 |
EMT |
476 |
347 |
219 |
126 |
91 |
56 |
47 |
40 |
29 |
25 |
20 |
17 |
14 |
11 |
10 |
9 |
8 |
6 |
5 |
4 |
4 |
|
IMC |
436 |
318 |
200 |
115 |
83 |
51 |
43 |
36 |
27 |
23 |
19 |
16 |
13 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
4 |
|
GRC |
412 |
301 |
189 |
109 |
79 |
48 |
41 |
34 |
25 |
21 |
18 |
15 |
12 |
10 |
8 |
7 |
7 |
5 |
4 |
4 |
4 |
| 4 |
EMT |
608 |
443 |
279 |
161 |
116 |
71 |
60 |
51 |
37 |
32 |
26 |
22 |
18 |
15 |
13 |
11 |
10 |
8 |
7 |
6 |
5 |
|
IMC |
562 |
410 |
258 |
149 |
107 |
66 |
56 |
47 |
35 |
29 |
24 |
20 |
17 |
13 |
12 |
10 |
9 |
7 |
6 |
5 |
5 |
|
GRC |
531 |
387 |
244 |
140 |
101 |
62 |
53 |
44 |
33 |
27 |
23 |
19 |
16 |
13 |
11 |
10 |
8 |
7 |
6 |
5 |
5 |
Above information referenced from tables C1, C4, and C8 of the 1996 NEC.
For information on the following types of conduit, see these tables in appendix
C of the 1996 NEC:
-
Rigid PVC Conduit, Schedule 80 Table C9
-
Rigid PVC Conduit, Schedule 40 Table C10
-
Flexible Metallic Conduit Table C3
-
Liquidtight Flexible Metallic Conduit Table C7
-
Liquidtight Flexible Nonmetallic Conduit (Type FNMCB) Table
C5
If you have any other questions see the NEC Code Book or contact us.
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