Does anyone know if an automotive style 12V relay coil can handle the
solar panel voltages common in a 12V nominal panel? This would be a low
cost and small size solution that might work best in my case. A $6 relay
can switch 40A - well over what I need to do.
Jason Szumlanski
Fafco Solar
All one could do would be to test the car style relay. One brand may
tolerate an overvoltage on the coil better than another. First connect the
relay to your truck battery (engine running) and leave it energized a bit.
Feel the case to get a baseline temperature. Then hook it up per our
Wrenches,
Here's an update on this configuration (20kW Enphase, AC coupled to
Sunny Islands) you should know about:
Enphase will not support and warranty the use of their micro inverters
in an AC-coupled installation with battery-based inverters. Enphase
approved this verbally with us in
Kent,
Thanks for the great feedback. Your final question is key. I do want it to
close at a fairly low voltage (low irradiance). I need the load to run pretty
reliably from just after dawn to just before dusk. I think I'll dig deeper and
find a relay that a) fits, b) tolerates higher
Hi Brian:
I didn't get into solar to cut trees, and I doubt any of us did. Thanks
for the insight. I am glad to know it wasn't due the Solar Edge equipment
failing.
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell: 707-321-2937
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