Quattrohead
Solar Wizard
I have been swapping panels around, taking the 330w 60v Panasonic panels over to the new home to install and replacing with 315w 40v Hyundai until we move out of here.
Anyway, I flipped the breaker off for that string and went about my work. I noticed one of the paralleling Y was water damaged but as I am not paralleling the Hyundai I removed it and poked the 2 wires out the front to remind me to replace the MC4's later.
Loaded up the trailer and flipped the breaker back on. Looked at the EG4 and saw no input on a PV string.....ahh that's right I needed to replace the MC4.
Cracked out the tools, sat on the ground in front of the panels, cut off the old connector and stripped back the wire, put the metal pin into the ratchet crimper and gave it a squeeze. All good. Gave it another squeeze but this time hit the little metal latch release........BUZZZZZZZZ went my !ucking brain. I swear that is what I heard.
So remember folks, even on a cloudy day, your panels are still producing hundreds of nasty DC volts even if only a few hundred watts.
My thumb still tingles.
Anyway, I flipped the breaker off for that string and went about my work. I noticed one of the paralleling Y was water damaged but as I am not paralleling the Hyundai I removed it and poked the 2 wires out the front to remind me to replace the MC4's later.
Loaded up the trailer and flipped the breaker back on. Looked at the EG4 and saw no input on a PV string.....ahh that's right I needed to replace the MC4.
Cracked out the tools, sat on the ground in front of the panels, cut off the old connector and stripped back the wire, put the metal pin into the ratchet crimper and gave it a squeeze. All good. Gave it another squeeze but this time hit the little metal latch release........BUZZZZZZZZ went my !ucking brain. I swear that is what I heard.
So remember folks, even on a cloudy day, your panels are still producing hundreds of nasty DC volts even if only a few hundred watts.
My thumb still tingles.