Copper and Aluminum Wire - Max Amps vs. Gauge
Maximum current in copper and aluminum wire.
Maximum current in aluminum and copper wire with ambient temperature 86oF (30oC):
print Maximum Current in Aluminum and Copper Wire Diagram
Example - Maximum Current in 6 mm2 Aluminum Wire
6 mm2 aluminum wire is somewhere between AWG #9 and #10. To be on the safe side we use AWG #10 (the smallest one) in the figure above and estimates the maximum current to be approximately 30 amps.
Copper and Aluminum - Max. Current Diagram in Metric Units
Maximum current diagram based on wire size in metric units mm2: