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Branch-circuit conductors serving a single motor must have an ampacity of at least what percent of the motor's FLC?

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  1. 100%
  2. 150%
  3. 125%

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References

  1. EC&M: Motor Calculations Part 1 www.ecmweb.com/design/article/20897071/motor-calculations-part-1-motors-and-branch-circuit-conductors Checked 2026-10-11.
  2. NFPA: Report on Comments, 2023 NEC Article 430 (Table 430.52) docinfofiles.nfpa.org/files/AboutTheCodes/70/70_A2022_NEC_P11_SD_SRStatements.pdf Checked 2026-10-11.

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Trades & ShopUnder 240.4(D), the maximum overcurrent device for 14 AWG copper is how many amps?Trades & ShopFor conductors 18 AWG to 10 AWG, what two things limit the size of the overcurrent device?Trades & ShopA motor with a 1.15 or higher service factor can have overload protection sized to what maximum percent of nameplate current?

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