125 Amp Panel Wire Size

500mcm copperwire with an insulation factor of 75 and 90 degrees c is rated at380 and 395 amps respectively.

125 amp panel wire size. The wire size according to code has to be up sized to 125. I understand i could use a 125 amp breaker but i do not need the additional amperage. Enter your proposed cable size type of insulation voltage ambient temp 30 is norm your cable length and circuit load in amps. Three pumps of a pump station 30 10 and 1 horsepower are connected to the power source of 460 volts 3 phase.

How to wire a 125 amp service step 1 firstly ensure that the power is completely off for safety reasons by disconnecting the power leads from the meter. 291 67 x 125 364 6. 291 67 x 125 364 6. I will be installing a 100amp breaker in my main panel.

The wire size for 125 amp service should be a 10 gauge bare ground wire. From table 430 150 they draw 40 amps 14 amps and 3 amps respectively. What size wire should i use in aluminum as it is cheaper. When more than one motor is used the current of the largest load must be multiplied by 1 25 plus the sum of the rest.

The wire size according to codehas to be up sized to 125. V1 v2 load in amps calculate cable selection copper only up to 25mm above this cable reactance must be considered. I assume i need to run 4 wires 2 hot 1 neutral and 1 ground. I am installing a 125 amp load center in my house to service an addition.

The run is no more than 100ft.