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Wire Gauge
Information |
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Wire Gauge (AWG)
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Current Carrying Capacity - Cu wire (in
Amps) [see
notes 1,2,3 below]
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Cross section (mm2) [see
note 4 below]
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DC resistance (Ohms/1000 feet) [see
note 4 below]
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30 |
2 |
.051 - .057 |
87.3 - 113 |
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28 |
3 |
.072 - .093 |
56.7 - 70.8 |
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26 |
4 |
.128 - .155 |
34.4 - 43.5 |
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24 |
6 |
.196 - .242 |
23.3 - 27.3 |
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22 |
8 |
.324 - .385 |
13.7 - 16.8 |
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20 |
10 |
.510 - .620 |
8.6 - 10.5 |
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18 |
15 |
.823 - .969 |
5.5 - 8.5 |
| 16 |
19 |
1.31 - 1.44 |
3.7 - 4.3 |
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14 |
27 |
1.95 - 2.29 |
2.3 - 2.7 |
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12 |
36 |
3.11 - 3.66 |
1.5 - 1.8 |
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10 |
47 |
4.77 - 5.37 |
0.98 - 1.1 |
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8 |
65 |
8.40 - 8.54 |
0.61 - 0.67 |
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6 |
95 |
13.2 - 13.6 |
0.39 - 0.47 |
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4 |
125 |
21.0 - 21.6 |
0.20 - 0.25 |
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2 |
170 |
33.3 - 34.3 |
0.15 - 0.16 |
Notes:
1) Heat Dissipation characteristics (thermal
impedance, ambient temperature etc.) must be taken into account. If wires are bundled and passed through a
conduit then current must be de-rated by up to half.
2) Current carrying capacity will be higher for high temp insulators such as Teflon,
Silicone, Kynar etc.
3) Longer Wires have higher resistance and
consequently higher Voltage drops, this must be taken account for long runs of wires.
4) For a Given AWG wire cross-section and resistance depend on whether the wire is solid or
stranded and upon the type of standing. In the
table, above a range is given for different wire
stranding configurations.
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