Full Load Current in Amps for Single Phase AC Motors

To find the full load current for your single phase motor running at normal speed and torque, use your motor's horsepower and rated motor voltage to find the full load current in amps in the chart below.

Full Load Current (amps) for a 1 Phase Motor

Horsepower (hp) Rated Motor Voltage
115V 200V 208V 230V
1/6 4.4 2.5 2.4 2.2
1/4 5.8 3.3 3.2 2.9
1/3 7.2 4.1 4.0 3.6
1/2 9.8 5.6 5.4 4.9
3/4 13.8 7.9 7.6 6.9
1 16.0 9.2 8.8 8.0
1 1/2 20.0 11.5 11.0 10.0
2 24.0 13.8 13.2 12.0
3 34.0 19.6 18.7 17.0
5 56.0 32.2 30.8 28.0
7 1/2 80.0 46.0 44.0 40.0
10 100.0 57.5 55.0 50.0

The voltages listed are rated motor voltages. The listed currents are for system voltage ranges of 110 ‑ 120 and 220 ‑ 240.

TABLE 430.248, 2020 NEC®

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Warning: For safety, call a licensed electrician and consult the NEC®. All licensed electricians have passed examinations covering the National Electric Code®, know state and local building codes, and may carry insurance to cover damages.