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Cable Size Calculation For Motor

This electrical calculator (MS Excel sheet calculator) named 'Cable Size Calculation For Motor's HP & Current' is obviously helpful for all electricians and engineers. This calculator can calculate the size of cable for motor (HP and current) calculation.


Cable Size Calculation


Calculate the Calculation Based On Motor Horse Power HP and Specified Current.

Input data: Motor voltage (V L-L), Motor horsepower, Cable Temperature Rating (°C), Ambient Temperature (°C), Cable Length (ft) and Acceptable Voltage Drop (%).

Calculated Values: Operating Current (A), 125% Current per NEC (A), “Zero Length” Cable Size, Acceptable Voltage Drop (V), Actual Voltage Drop (V) and Actual Voltage Drop (%).

Note: Conductor ampacities are based on NEC 2008, Table 310.16 (Not more than 3 current carrying conductors in racewary).


  1. Software: Cable Size Calculations For Motor.
  2. Size:
  3. Price: Free
  4. Download: Right here

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