Nec Cable Ampacity: aluminum
310.15B17#800 kcmil to 310.17#1750 kcmil
NEC (NFPA 70) cable ampacity ratings — allowable current for copper and aluminum conductors at 60/75/90°C insulation ratings in raceways and free air; high-temperature conductor ampacity at 150/200/250°C; ambient temperature correction factors; conductor fill adjustment factors
| conductor material | conductor size | ampacity 60C (A) | ampacity 75C (A) | ampacity 90C (A) | installation | nec table | standard |
|---|---|---|---|---|---|---|---|
| aluminum | 310.15B17#800 kcmil | 535 | 645 | 725 | free air | 310.15(B)(17) | NEC (NFPA 70) 2017 Edition Table 310.15(B)(17) |
| aluminum | 310.15B17#900 kcmil | 580 | 700 | 790 | free air | 310.15(B)(17) | NEC (NFPA 70) 2017 Edition Table 310.15(B)(17) |
| aluminum | 310.17#1 AWG | 130 | 155 | 175 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#1/0 AWG | 150 | 180 | 205 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#10 AWG | 35 | 40 | 40 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#1000 kcmil | 625 | 750 | 845 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#12 AWG | 25 | 30 | 35 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#1250 kcmil | 710 | 855 | 960 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#1500 kcmil | 795 | 950 | 1,075 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
| aluminum | 310.17#1750 kcmil | 875 | 1,050 | 1,185 | free air | 310.17 | NEC (NFPA 70) Table 310.17 |
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