Aussie
New Member
Had trouble with my MC4 connectors on the solar panels ( 4s ). Going to replace pos and neg wires on the panels and am looking for some good connectors, not MC4. Any reason I should not do this? Any suggestions on connectors?
Replace MC4 with another connector
- Thread starter Aussie
- Start date
Aussie
New Member
Just had another thought. Would there be anything wrong with just running one wire from one panel to another? eliminate the MC4 connector altogether . They are always going to be in 4s. I can use ring terminals on the panels.
Its better to use waterproof crimp connectors.
Aussie
New Member
Not sure what you mean . Do you mean use waterproof crimp connectors in the junction box of the panels, or a single wire from each panel joined with a waterproof crimp connector.
Snip off the mc4, use heat shrink crimp connectors to rejoin
Bluedog225
Solar Wizard
3m butt connectors. Heat shrink cover.
Get the “bare” butt connectors. The solar wire may not fit into the pre plastic coated connectors.
Get the “bare” butt connectors. The solar wire may not fit into the pre plastic coated connectors.
Brett V
Solar Wizard
Crimp butt splices or solder and heat shrink, but what problems are you having with the mc4 connectors to prompt such drastic changes? I’d think it’s going to be less work and a better job to figure out why you’re failing with the mc4 connectors and remedy that issue.
Aussie
New Member
Cheap no name panels. Poor quality wire and connectors. The wire was corroded inside the insulation. I have ended up hard wiring as I was thinking. I used quality wire and crimp ring terminals. I had the wire and ring terminals on hand. It's back in service and looking good.
Aussie
New Member
Thank you all for you help and suggestion's, much appreciated.
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