> Calculator
Three Phase Motor HP Calculator
Full Load Amps
Confused about the amperage needs of your 3-phase motor? This online calculator simplifies selecting the right wiring and circuit breakers for safe and efficient operation. Imagine your motor as a powerful workhorse. To function optimally, it needs a specific amount of electricity measured in amperes (amps). This calculator estimates the crucial full load amps (FLA) your motor will draw at its rated horsepower. Enter the motor’s voltage (line-to-line voltage between any two phases) and horsepower. For a more precise calculation, include the motor’s efficiency (typically 90-95%). The calculator then estimates the amperage required.
Relevant Products Available
Overloads
Contactors
Breakers
Fuses
Motor Disconnects
Vanco Calculators
Important Note: While this tool is valuable, the most accurate FLA comes from the motor’s nameplate or datasheet. However, if that information is unavailable, this calculator offers a handy starting point. With the estimated FLA, you can make informed decisions. The amperage helps you select appropriate wiring that can handle the current safely. It also helps you choose the correct circuit breakers, which act as safety switches to prevent damage from excessive current. By ensuring your 3-phase motor has the right electrical capacity, you contribute to its longevity and optimal performance. This calculator empowers you to estimate the full load amps and select the right electrical components for your specific application.
For Users in Ontario: There are many types of motors and motor installation methods. Always consult the Ontario Electrical Code section 28 to ensure full code compliance when selecting conductors and protective devices.