Hi Dan
I'm guessing the wire can handle the 100 amp if they are already running 60a.
I've had QO breakers go bad, even ones not tortured like that one.
The derate is interesting as it has to do with less atoms of air per volume.
Less air, equals less cooling
Jay
Peltz power
Sent from my iPad
We'd need more info to figure this out.
1) Wire Size
2) Type of charge controller C 60 or new MPPT model
3) use a clamp on meter to measure actual current
4) measure voltage drop across the breaker.
This very well could just be a loose connection at the breaker either
the cable side of the
Esteemed Wrenches;
A weird troubleshooting call today for my business partner DanB. I wish I
had been along if only for shock and awe and lessons learned.
A nicely installed vintage 12VDC PV system that someone else designed and
installed over 10 years ago, we replaced a dead/frozen battery bank
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