NEC · 2020 National Electrical Code

§310.16 · Table 310.16

Effective in NEC 2020 · NEC 2023 NW Indiana.

Plain-English explainer

Table 310.16 lists conductor ampacity for sizes 14 AWG through 2000 kcmil at the 75 °C column — the source used for termination-limited adjustments when a 75 °C-rated termination is in play.

Why inspectors flag this

Pulling the 60 °C column on a 75 °C-rated breaker is a classic 310.16 failure; the drafter lifts the column source so the spec confirms the right ampacity.

As quoted in the code: The 75 deg C column of Table 310.16 lists the ampacity of conductors sizes 14 AWG through 2000 kcmil at 75 deg C; it is the source column used for termination-limited adjustments when the termination is rated 75 deg C.

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