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4000 Raceway Wire Fill Capacity for Power* | ||||||||||
Number of Conductors (40% Fill) | ||||||||||
Wire Size THHN/THWN |
O.D. | Without Devices |
With Duplex/ Rect. Devices 1.59in.² (1025mm) |
With Surge/ GFCI Devices 2.30in.² (1485mm) |
Large Single Receptacles 3.00in.² (1935mm) |
|||||
inches | [mm] | Undiv. | Divided | Undiv. | Divided | Undiv. | Divided | Undiv. | Divided | |
14 AWG | 0.111 | [2.8] | 296 | 127 | 165 | 78 | 107 | 49 | 49 | 20 |
12 AWG | 0.130 | [3.3] | 216 | 93 | 120 | 57 | 78 | 36 | 36 | 15 |
10 AWG | 0.164 | [4.2] | 136 | 58 | 76 | 36 | 49 | 22 | 22 | 9 |
8 AWG | 0.216 | [5.5] | 78 | 33 | 43 | 20 | 28 | 13 | 13 | 5 |
6 AWG | 0.254 | [6.5] | 56 | 24 | 31 | 15 | 20 | 9 | 9 | 3 |
4 AWG | 0.324 | [8.2] | 34 | 15 | 0 | 0 | 0 | 0 | 0 | 0 |
3 AWG | 0.352 | [8.9] | 29 | 12 | 0 | 0 | 0 | 0 | 0 | 0 |
2 AWG | 0.384 | [9.8] | 24 | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
4000 Raceway Wire Fill Capacity for Communications | |||||||
O.D. (Approx. Dia) | Divided | Undivided | |||||
Cable Wire Size | inches | [mm] | 20%* Fill |
40%** Fill |
20%* Fill |
40%** Fill |
|
UNSHIELDED TWISTED PAIR |
4-pair, 24 AWG, Cat 3 4-pair, 24 AWG, Cat 5e 4-pair, 24 AWG, Cat 6 |
0.190 0.210 0.250 |
[4.8] [5.3] [6.3] |
24 20 14 |
49 40 28 |
50 41 29 |
101 83 58 |
TELEPHONE | 2-pair, 24 AWG 3-pair, 24 AWG 4-pair, 24 AWG 25-pair, 24 AWG |
0.140 0.150 0.190 0.410 |
[3.6] [3.8] [4.8] [10.4] |
45 39 24 5 |
90 79 49 10 |
93 81 50 10 |
187 163 101 21 |
COAXIAL | RG58/U RG59/U RG62/U RG6/U |
0.195 0.242 0.242 0.270 |
[5.0] [6.1] [6.1] [6.9] |
23 15 15 12 |
46 30 30 24 |
48 31 31 25 |
96 62 62 50 |
TWINAXIAL | 100 Ohm | 0.330 | [8.4] | 8 | 16 | 16 | 33 |
SHIELDED TWISTED PAIR |
Type 1 Type 2 Type 3 |
0.390 0.465 0.245 |
[9.9] [11.8] [6.2] |
5 4 14 |
11 8 29 |
12 8 30 |
24 16 61 |
FIBER | Mini ZipCord ZipCord Round 4 Strand Fiber Round 6 Strand Fiber |
0.079 x 0.157 0.118 x 0.236 0.187 0.256 |
[2 x 4] [3 x 6] [4.8] [6.5] |
56 25 25 13 |
112 50 51 27 |
116 51 52 27 |
232 103 104 55 |
* 20% cable fill is calculated to approximate reduction in cable capacity due to connectors mounted with raceway and fittings that may restrict cross sectional area.
** 40% cable fill is the maximum designed cable fill based on a proposed revision to TIA/EIA 569-A.