Motor FLA Calculator

Look up motor full-load amps straight from the NEC tables. Pick phase, horsepower, and voltage to get the table FLA and the 125% value used to size branch-circuit conductors.

Motor

Phase

Horsepower

Voltage

Full-Load Amps

Motor FLA15.2 A

Conductor Min (125%)19 A

FLA from NEC Table 430.250. Branch-circuit conductors are sized at 125% of FLA (NEC 430.22). Use nameplate FLA for overload sizing.

Values from NEC Table 430.248 (single-phase) and 430.250 (three-phase) induction motors. Per NEC 430.6, use these table values — not the nameplate FLA — for conductor and overcurrent sizing; use nameplate FLA for overload protection. Verify against the governing NEC edition.

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