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.
Motor Circuit
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.
Not only know the moment a condition is impacting your crews, know the cost to your project in a couple clicks. Construction Monkey makes it easy to monitor your greatest risk and get paid for conditions beyond your control or scope.
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.