Gauge of Solar Cables for RV Use

When deciding what size cables to use for RV solar installations, the gauge of the wire is an important factor to consider. The gauge of the wire determines the amount of current that can be safely carried from the solar array to the charge controller and other electrical components. The most common gauges for RV solar installations are 8, 10 and 12.

Gauge 8 wire is the thickest, and can handle the most current. This type of wire is ideal for larger solar arrays, and is often used when batteries are located more than 10 feet away from the solar array. Gauge 10 wire is the most popular choice for RV solar installations and is suitable for connecting solar arrays to charge controllers that are located within 10 feet. Gauge 12 wire is the thinnest and is often used in shorter runs and shorter circuits.

Overall, the choice of wire gauge can have a significant impact on the performance of an RV solar system. Choosing the right wire gauge can help ensure that the system is operating safely and efficiently.