4 AWG wire specs

85 A

4 AWG copper at 75 °C · 70 A at 60 °C · 95 A at 90 °C · aluminum 65 A at 75 °C

Voltage drop of 4 AWG copper

One-way	10 A	15 A	20 A	30 A	50 A
25 ft	0.15 V	0.23 V	0.31 V	0.46 V	0.77 V
50 ft	0.31 V	0.46 V	0.62 V	0.92 V	1.54 V
100 ft	0.62 V	0.92 V	1.23 V	1.85 V	3.08 V
150 ft	0.92 V	1.39 V	1.85 V	2.77 V	4.62 V
200 ft	1.23 V	1.85 V	2.46 V	3.70 V	6.16 V

Single-phase, DC resistance 0.308 Ω/1000 ft (Cu) / 0.508 Ω (Al).

How many amps can 4 AWG wire carry?

Copper 4 AWG: 70 A at 60 °C, 85 A at 75 °C, 95 A at 90 °C.

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