Amp Capacities of Wire

Amp Carrying Capacities of Copper Wire
Not more than 3 conductors in conduit, cable or buried in earth
Wire Size Amps Normally Fused at:  Maximum Distance at 120 Volts Maximum Distance at 240 Volts
14ga. 15 15 30ft. 60ft.
12ga. 20 20 35ft. 70ft.
10ga. 30 30 35ft. 75ft.
8ga. 50 40 45ft. 90ft.
6ga. 65 50 55ft. 115ft.
4ga. 85 70 n/a 130ft.
2ga. 115 100 n/a 140ft.
1/0 150 125 n/a 190ft.
2/0 175 150 n/a 190ft.
3/0 200 200 n/a 190ft.
 

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Last update: March 18, 2008 05:16 PM
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