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Ampacity Table (NEC 310.16)

Interactive NEC Table 310.16 ampacity lookup. Filter by wire size (AWG/kcmil), insulation temperature rating (60°C/75°C/90°C), and conductor material (copper/aluminum).

AWG / kcmilCu 60°CCu 75°CCu 90°CAl 60°CAl 75°CAl 90°C
#14152025
#12202530152025
#10303540253035
#8405055304045
#6556575405060
#4708595556575
#385100110657585
#2951151307590100
#111013015085100115
#1/0125150170100120135
#2/0145175195115135150
#3/0165200225130155175
#4/0195230260150180205
250 kcmil215255290170205230
300 kcmil240285320190230255
350 kcmil260310350210250280
400 kcmil280335380225270305
500 kcmil320380430260310350

NEC Table 310.16 — Allowable ampacities for not more than 3 current-carrying conductors in raceway (60°C/75°C/90°C). Click a row to highlight.

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