Solar photovoltaic cables consist of several wires. 4mm photovoltaic cables – the preferred choice for solar panels – consist of multiple wires that work together to transfer solar energy from the panel to the battery, inverter and connected devices and appliances. Most 4mm solar PV cables have 2-5 wires set in a protective sheath. There are many types of solar photovoltaic cables, the most popular ones are DC photovoltaic cables, DC photovoltaic cables main photovoltaic cables and AC link photovoltaic cables.
DC photovoltaic cables: DC photovoltaic cables are available in string type and modular type. Both are compatible with solar panels and can be connected to the inverter with a 4mm DC PV cable by connecting the negative and positive leads. While 4mm PV cables are popular, 6mm and 2.5mm PV cables are also available. The size of the solar panel determines what photovoltaic cable should be used.
Insulation provides protection to the wires, and they are color-coded for easy identification (blue is uncharged, red is positively charged). String PV cables can be connected directly to the inverter or via AC connections, DC combiner boxes or node string technology. Some solar panels have DC PV cables built into them.
Main DC PV Cables: These PV cables connect the negative and positive wires from the junction box to the inverter. 2mm, 4mm and 6mm photovoltaic cables are available in single or double core. Two-core PV cables are best suited for generator boxes and/or inverters. Single core is ideal for a variety of solar panel installations
AC connecting PV cables AC connecting PV cables connect the PV modules to the grid and safety mechanisms. The 5-core AC connection is designed for small photovoltaic systems connected to a three-phase inverter.