Need motor voltage, amperage and phase to give you an anwer.
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A 60 horsepower motor typically requires a minimum breaker size of 100 Amps for normal operation. It is important to consult the motor's specifications or a licensed electrician to ensure the correct breaker size for safe and efficient operation.
In North America the smallest size breaker found in a home distribution panel is rated at 15 amps
For a 7.5 hp motor operating at 240V, you would typically use a 14-gauge wire and a 40 amp breaker. However, it is best to consult the motor's specifications and the National Electrical Code to determine the exact wire size and breaker needed for your specific setup.
The breaker size for a Goulds Century pump 1081 would depend on the specific model and voltage requirements. Refer to the owner's manual or the nameplate on the pump motor for the correct breaker size recommended by the manufacturer. It is important to match the breaker size with the electrical requirements to ensure safe operation.
The formula you are looking for is I = W/E.
A breaker is based on the amperage that is drawn by the pump motor load. Find the full load amperage of the motor. The wire fed from the breaker has to be rated at 125% of the motors full load amperage. The breaker for motors have to be over sized, usually 250% of the motors full load amps.