Metric
Conversion
Electrical Formulas
Conduit Weight
Maximum # of Conductors in Conduit
600 Volt Building Wire Weights & Ampacities
Ampacities of Insulated Conductors
Copper to Aluminum
Receptacle Configuration
Maximum Number of THNN Conductors in
Trade Sizes of Conduit
Conduit Trade Size (inches)
|
AWG
|
1/2
|
3/4
|
1
|
1
1/4
|
1
1/2
|
2
|
2
1/2
|
3
|
3
1/2
|
4
|
5
|
6
|
|
14
12 10 |
13
10 6 |
24
18 11 |
39
29 18 |
69
51 32 |
94
70 44 |
154
114 73 |
164 104 |
160 |
0
|
0
|
0
|
0
|
|
8
6 4 |
3
1 1 |
5
4 2 |
9
6 4 |
16
11 7 |
22
15 9 |
36
26 16 |
51
37 22 |
79
57 35 |
106
76 47 |
136
98 60 |
154 94 |
137 |
|
3
2 1 |
1
1 |
1
1 1 |
3
3 1 |
6
5 3 |
8
7 5 |
13
11 8 |
19
16 12 |
29
25 18 |
39
33 25 |
51
43 32 |
80
67 50 |
116
97 72 |
|
0
00 000 0000 |
0
|
1
1 1 1 |
1
1 1 1 |
3
2 1 1 |
4
3 3 2 |
7
6 5 4 |
10
8 7 6 |
15
13 11 9 |
21
17 14 12 |
27
22 18 15 |
42
35 29 24 |
61
51 42 35 |
|
250
300 350 |
0
|
0
|
1
1 1 |
1
1 1 |
1
1 1 |
3
3 2 |
4
4 3 |
7
6 5 |
10
8 7 |
12
11 9 |
20
17 15 |
28
24 21 |
|
400
500 |
0
|
0
|
0
|
1
1 |
1
1 |
1
1 |
3
2 |
5
4 |
6
5 |
8
7 |
13
11 |
19
16 |
Ampacity
Correction Factors for More than 3 Conductors in Raceway
|
No.
Conductors
Factor |
4
to 6
.80 |
7
to 9
.70 |
10
to 20
.60 |
21
to 30
.45 |
31
to 40
.40 |