125 Amp Wire Size Copper
In general 1 0 copper with tw insulation is good for 125 amps.
125 amp wire size copper. 2 copper with tw insulation is only good for 95 amps. Are connected to the power source of 460 volts 3 phase. These are minimum requirements but you can always go heavier.
The figure we would plug. From table 430 150 they draw 40 amps 14 amps and 3 amps respectively. The calculator uses the following formulas for calculating wire size which are based.
1 3 thhn thwn 2 wire for 100 amp sub panel. All wiring will be copper two 2 thhn for hot one 3 thhn for neutral and one 4thhn for the ground. The run is no more than 100ft.
I understand i could use a 125 amp breaker but i do not need the additional amperage. I have a 70 run. Single conductor 3 gauge thhn.
The run will be about 100 feet and the breaker boxes are 125 amp. For a complete listing of the. I am installing a 125 amp load center in my house to service an addition.
I m looking for suggestions on wire size this is what was given to me by a friend of mine. 500mcm copper wire with an insulation factor of 75 and 90 degrees c is rated at 380 and 395 amps respectively. 291 67 x 125 364 6.
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