Page 760 - 2018_IRC

POWER AND LIGHTING DISTRIBUTION

TABLE E3904.6(3) (Annex C, Table C.3)
a
MAXIMUM NUMBER OF CONDUCTORS IN FLEXIBLE METALLIC CONDUIT (FMC)
TRADE SIZES
CONDUCTOR SIZE
TYPE LETTERS (inches)
AWG/kcmil
1 3 1 1 1 1 2
/ 2 / 4 / 4 1 / 2
14 3 7 11 17 25 44
12 3 6 9 14 21 37
10 14 5 7 11 17 30
8 2 4 6 9 15
6 1 1 3 5 7 12
4 1 1 2 4 5 10
RHH, RHW, RHW-2
3 1 1 1 3 5 7
2 1 1 1 3 4 7
1 0 1 1 1 2 5
1/0 0 1 1 1 2 4
2/0 0 1 1 1 1 3
3/0 0 0 1 1 1 3
14 9 15 23 36 53 94
12 7 11 18 28 41 72
TW, THHW, THW, THW-2
10 5 8 13 21 30 54
8 3 5 7 11 17 30
14 6 10 15 24 35 62
a
a
RHH , RHW , RHW-2 a 12 5 8 12 19 28 50
10 4 6 10 15 22 39
8 1 4 6 9 13 23
6 1 3 4 7 10 18
4 1 1 3 5 7 13
3 1 1 3 4 6 11
2 1 1 2 4 5 10
a
a
a
RHH , RHW , RHW-2 , 1 1 1 1 2 4 7
TW, THW, THHW, THW-2 1/0 0 1 1 1 3 6
2/0 0 1 1 1 3 5
3/0 0 1 1 1 2 4
4/0 0 0 1 1 1 3
4/0 0 0 1 1 1 2
14 13 22 33 52 76 134
12 9 16 24 38 56 98
THHN, THWN, THWN-2
10 6 10 15 24 35 62
8 3 6 9 14 20 35
6 2 4 6 10 14 25
4 1 2 4 6 9 16
3 1 1 3 5 7 13
2 1 1 3 4 6 11
THHN, THWN, THWN-2 1 1 1 1 3 4 8
1/0 1 1 1 2 4 7
2/0 0 1 1 1 3 6
3/0 0 1 1 1 2 5
4/0 0 1 1 1 1 4
14 9 15 23 36 53 94
12 7 11 18 28 41 72
10 5 8 13 21 30 54
8 3 5 7 11 17 30
6 1 3 5 8 12 22
4 1 2 4 6 9 16
XHH, XHHW, XHHW-2 3 1 1 3 5 7 13
2 1 1 3 4 6 11
1 1 1 1 3 5 8
1/0 1 1 1 2 4 7
2/0 0 1 1 2 3 6
3/0 0 1 1 1 3 5
4/0 0 1 1 1 2 4
For SI: 1 inch = 25.4 mm.
a. Types RHW, and RHW-2 without outer covering.

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