NEC 2026 Compatible

For a 50 horsepower, 460-volt, three-phase squirrel-cage motor with a FLC of 65 Amperes (from NEC Table 430.250), what is the minimum size of THHN copper conductors required for the branch circuit, assuming continuous duty and a 75°C termination rating?

Journeyman Level📋 NEC 430.22, NEC 310.16Motor
A

No. 4 AWG

B

No. 3 AWG

C

No. 2 AWG

D

No. 1 AWG

Explanation & Direct Citation

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    Motor Practice Question: NEC 430.22, NEC 310.16 | SparkShift | SparkShift