The 1.5 HP motor is built to draw a specific amperage at full load at 240V. Because power equals voltage times current, a lower than rated voltage will draw more amps through the motor. So if your supply is 208, your voltage will increase by a ratio of 240/208, or about 15%. Low voltage/high amps is a common failure mode for hand power tools being used with undersized extension cords.

If the motor is under a light load, you will likely never notice. But if it is running at full load, you might find it overheating, tripping overloads, or just generally failing early.

The 1.5 HP motor is built to draw a specific amperage at full load at 240V. Because power equals voltage times current, a lower than rated voltage will draw more amps through the motor. So if your supply is 208, your current will increase by a ratio of 240/208, or about 15%. Low voltage/high amps is a common failure mode for hand power tools being used with undersized extension cords.

If the motor is under a light load, you will likely never notice. But if it is running at full load, you might find it overheating, tripping overloads, or just generally failing early.