1
# of Conductors
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Select Insulation
THHN
THWN
THWN-2
THHW
THW
THW-2
XHHW
XHHW-2
XHH
RHH (covered)
RHW (covered)
RHW-2 (covered)
RHH (not covered)
RHW (not covered)
RHW-2 (not covered)
BARE - stranded
Select Size
14 AWG
12 AWG
10 AWG
8 AWG
6 AWG
4 AWG
3 AWG
2 AWG
1 AWG
1/0 AWG
2/0 AWG
3/0 AWG
4/0 AWG
250 kcmil
300 kcmil
350 kcmil
400 kcmil
500 kcmil
600 kcmil
700 kcmil
750 kcmil
800 kcmil
900 kcmil
1000 kcmil
1250 kcmil
1500 kcmil
1750 kcmil
2000 kcmil
Wire Area
Total Area
+ Add Wire
Total Wires
Grand Total Area
Select Raceway
EMT
Rigid Metal Conduit
Intermediate Metal Conduit
Electrical Nonmetallic Tubing
Schedule 40 PVC
Schedule 80 PVC
Flexible Metal Conduit
Liquidtight Flexible Metal Conduit
Select Fill Value
Auto
60 Per Cent (nipples)
25 Per Cent (seal offs)
Raceway Specs
Minimum Raceway Size
Allowed Raceway area
Available Raceway area
Maximum number of same size wires
(at the Per Cent Fill)
Per Cent Fill
JAM RATIO
(for 3 conductors only)
JAM RATIO
(between 2.8 and 3.2)
Table 348.22 Maximum Number of Insulated Conductors in 3/8"
Flexible Metal Conduit and Liquid-tight Flexible Metal Conduit*
Types RFH-2, SF-2
Types TF, XHHW,
AF, TW
Types TFN, THHN,
THWN
Types FEP, FEPB,
PF, PGF
Size
(AWG)
Fittings
Inside
Conduit
Fittings
Outside
Conduit
Fittings
Inside
Conduit
Fittings
Outside
Conduit
Fittings
Inside
Conduit
Fittings
Outside
Conduit
Fittings
Inside
Conduit
Fittings
Outside
Conduit
18
2
3
3
5
5
8
5
8
16
1
2
3
4
4
6
4
6
14
1
2
2
3
3
4
3
4
12
-
-
1
2
2
3
2
3
10
-
-
1
1
1
1
1
2
* In addition, one covered or bare equipment grounding conductor of the same size shall be permitted.