Cable Size Calculator
If the major components are a long way from each other or the loads, you may need substantial cable to avoid loss of power. Decide where the components are going and use the cable calculator to work out the size of the major cables.
This calculator returns the minimum size for individual DC cable runs. The maximum load is entered, along with the system voltage and length of cable needed.
The result is the minimum cross-sectional area of two-core cable required to ensure a voltage drop of less than 5% of the system voltage.