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
Enter information and click on the "Calculate" button to get the results.
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 what is impacting you and the cost to your projects now, easily forecast the number hours your projects can expect to lose if your crews continue to be impacted by conditions like other trades in the way, cluttered jobsite, weather, etc.
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.