Solar Panel Atchament Wires

The renogy solar panels came with short wires with mc4 connectors attached from the factory.

Solar panel atchament wires.

Strip the wires and insert the cable into the junction box. Add a watertight connector to the incoming end of the junction box and protect it from moisture. You need to understand how different stringing configurations impact the voltage current and power of a solar array. Begin by connecting the wiring from the solar panel to the junction box.

Match up the male and female connectors with the opposite ones coming away from the solar panel and snap the mc4 connectors into place. Other cables will crack and break over time when they are exposed to uv radiation. Use the cables that come with the solar panel these are uv resistant cables. Solar panel wiring aka stringing and how to string solar panels together is a fundamental topic for any solar installer.

You will need to extend these short factory wires with longer wires in order to reach the combiner box. You can purchase and add mc4 crimp on connectors to your rooftop cables which will allow you to just plug your panels into your extender wires. This is the part when you need to oversize the diameter of the wire to account for voltage drop. Connect the negative wires together in the same fashion and the wires off the last panel in the parallel circuit are connected to the battery.

Wire solar panels in parallel by connecting the positive wire of the first solar panel to the positive terminal of the second panel and so on. Once you ve attached the input wires to the charge connector you should have 2 loose wires each ending in an mc4 connector.