Maximum distance of various gauge two conductor copper wire
Maximum distance one-way of various gauge two conductor copper wire from power source to load for 2% voltage drop in a 12 volt system are indicated in the chart below.
- double the distance if a 4% loss is acceptable
- multiply distances by 2 for 24 volts
- multiply distances by 4 for 48 volts
- en: 12 volt 2% wire loss chart