Motor Full-Load Current
Calculate the full-load current of an electric motor from its power, voltage, efficiency and power factor, free online.
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Three-phase: I = P ÷ (√3 · V · η · pf). Single-phase: I = P ÷ (V · η · pf). Conductors are sized for 125% of the full-load current, and the motor overload relay is typically set at 105–115% of the nameplate current.