Nec Cable Ampacity: copper
NEC (NFPA 70) cable ampacity ratings — allowable current for copper and aluminum conductors at 60/75/90°C insulation ratings
| conductor material | conductor size | ampacity 60C (A) | ampacity 75C (A) | ampacity 90C (A) | nec table |
|---|---|---|---|---|---|
| copper | 1 AWG | 110 | 130 | 145 | 310.16 |
| copper | 1/0 AWG | 125 | 150 | 170 | 310.16 |
| copper | 10 AWG | 30 | 35 | 40 | 310.16 |
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