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Electrical Motor Calculation
Electrical Motor Calculator
The Construction Monkey Motor calculator lets you figure out electrical characteristics of your system given a specific motor. By inputting horsepower, motor efficiency, power factor, and system voltage the system will calculate the disconnect size, feeder size, and starter size.
Make your selections below and the form will automatically update the values.
Enter Motor Information
HP
%
Results
Enter information and click on the "Calculate" button to get the results.
Notes:
1Feeder conduit is assumed to be Flex/EMT and the conductors are assumed to be copper. To get a feeder with different properties, you can utilize our feeder calculator.
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No guarantees are made as to the accuracy of the calculation or compliance with local codes. Verify all calculations with a professional engineer. If you find an error, or have a suggestion, please send us an email.