Solar MC4 connectors - needed? Why?
I'm in the early planning stage of doing a solar install on our fiver. I see the MC4 connectors and combiners are commonly used, and I wonder why, and if there is a reason why I could not just solder...
Forum Discussion
MC4 is the standard. Most panels are installed on buildings where there are 10s or even 100s of them. In those installations cutting and soldering would be way too complicated. If you modify the panel in any way, such as cutting off the connector, it will void the warranty. If you're not worried about that then go ahead. If you think you might want the warranty don't cut the wires or modify the junction boxes.
