What gauge wire for 75 amp?

Answer 1

Either #6AWG copper of #4 AWG aluminum wire rated for 90 c.

These values are rated at exactly 75 amps so you still need to calculate for voltage drop, conduit fill, and ambient temperature. So as a basic rule of thumb I always step up one wire size(#4awg copper and #3 aluminum) just to be safe.

Answer 2

It depend on what the load is. If it is a motor load then the size of the conductor has to be increased by 125% of the motor's full load amperage.

A #6 copper conductor with an insulation rating of 90 degrees C is rated at 75 amps. If the insulation factor is 70 degrees C then the conductor size is increased to a #4 conductor. If the insulation factor is 60 degrees C then the conductor size is increased to a #3 conductor.

Answer 3

For a 75 amp circuit, use a wire gauge of at least 6 AWG for copper wire or 4 AWG for aluminum wire to ensure it can safely handle the current without overheating. It's always recommended to consult with a professional electrician to determine the appropriate wire size for your specific application.

Answer 4

For a 75 amp electrical circuit, you would typically need a wire gauge of at least 6 AWG (American Wire Gauge) for copper wire or 4 AWG for aluminum wire. This wire gauge is capable of handling the current without overheating or causing a voltage drop. It's important to always consult the National Electric Code (NEC) or a qualified electrician to ensure the correct wire gauge is used for the specific application.

Answer 5

Could use #4 Copper or #3 Aluminum, not taking voltage drop into consideration. You won't have to take voltage drop into the equation, unless your wire run is over 90 or 100 feet.

Answer 6

AWG # 4 copper unless you have a run over 100 feet.

Answer 7

14 for 110 volt and 12 for 220 volt

Answer 8

AWG # 6 copper.