Recently many customers have asked us: How do solar panels connect to pv cables? How do pv cables of multiple sets of solar panels connect to the inverter? After all, the inverter only has one set of pv access segments. We can tell you that it is achieved through a MC4 pv connector (hereinafter referred to as MC4 pv connector).
MC4 pv connectors are divided into two types: 1000vdc and 1500vdc.
1000V DC MC4 pv connector: Applicable to solar systems with a rated voltage of 1000V, which is a more common standard voltage level on the market.
1500V DC MC4 pv connector: Applicable to solar systems with a rated voltage of 1500V, usually used in larger scale solar power stations, can support higher system voltages, thereby reducing cable losses and system costs.
Specifically: for on grid solar systems, because the maximum pv input current can reach 1000vdc, a 1500vdc MC4 pv connector will be selected; for off grid solar systems, the maximum pv input is generally 500vdc, so a 1000vdc MC4 pv connector will be selected.
Let's look at the composition of the MC4 pv connector: MC4 is composed of a pair of connectors: a male plug and a female plug. There is also a plug connected to the pv cable.
MC4 pv connectors are usually made of PPO or PPE insulation materials, which have good impact resistance and aging resistance, and are suitable for long term outdoor use. The male and female plugs are made of excellent flame retardant materials:
Connection method:
First, connect the inner core to the pv cable.
Then connect it to the male and female plugs of MC4 respectively. After connecting the male and female plugs, it can be used.
Finally, hide it under the solar panel and try to avoid sun and rain to extend its life.
Xindun Power provides all kinds of necessary accessories for solar systems. Most importantly, we can provide the best solar inverter design solutions. If you want to design a solar system for your home,business,industry, please contact us.
