#1 copper thhn
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
AWG # 6 copper or AWG # 4 aluminum
A #4 copper wire with an insulation factor of 75 or 90 degrees C is rated at 85 amps. A #2 aluminum wire with an insulation factor of 75 and 90 degrees C are rated at 90 and 95 amps respectively.
Aluminum and Copper Wire
Aluminium wire has high resistance than Copper.
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
copper
AWG # 6 copper or AWG # 4 aluminum
No, do not mix aluminum wire with copper wire.
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
In the electrical trade aluminum wire is equivalent to copper wire as it is also used to carry current. To carry the same current as copper wire aluminum wire is up sized to meet the same ampacity.
3/0 or250 aluminum
A #4 copper wire with an insulation factor of 75 or 90 degrees C is rated at 85 amps. A #2 aluminum wire with an insulation factor of 75 and 90 degrees C are rated at 90 and 95 amps respectively.
Aluminum and Copper Wire
Aluminium wire has high resistance than Copper.
When compared by volume, copper is best, then aluminum and finally iron. When compared by weight, aluminum is better than copper. You have to compare by volume because aluminum is so much lighter than copper, an aluminum wire that weighed the same as a copper wire would be much bigger and harder to work with.
Well, we'd need to know voltage, amperage, material used in the wire (copper or aluminum), and the length the wire will extend from the power source.