9065CT9701R03/21

Nameplate vs. NEC Full-Load Current

In the 1996 National Electrical Code® (NEC®), Tables 430-147, 430-148, 430-149, and 430-150 list full-load currents according to motor horsepower and voltage. According to Article 430-6, these full-load currents should be used, rather than the motor nameplate full-load current, to determine the ampacity of conductors, ampere ratings of switches, or branch-circuit overcurrent devices, and so on. It is specifically stated in Article 430-6, however, that “separate motor-running overcurrent (overload) protection shall be based on the motor nameplate current rating.”

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