300 kcmil wire specs

285 A

300 kcmil copper at 75 °C · 240 A at 60 °C · 320 A at 90 °C · aluminum 230 A at 75 °C

Voltage drop of 300 kcmil copper

One-way	10 A	15 A	20 A	30 A	50 A
25 ft	0.02 V	0.03 V	0.04 V	0.06 V	0.11 V
50 ft	0.04 V	0.06 V	0.09 V	0.13 V	0.21 V
100 ft	0.09 V	0.13 V	0.17 V	0.26 V	0.43 V
150 ft	0.13 V	0.19 V	0.26 V	0.39 V	0.64 V
200 ft	0.17 V	0.26 V	0.34 V	0.51 V	0.86 V

Single-phase, DC resistance 0.0429 Ω/1000 ft (Cu) / 0.0707 Ω (Al).

How many amps can 300 kcmil wire carry?

Copper 300 kcmil: 240 A at 60 °C, 285 A at 75 °C, 320 A at 90 °C.

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