Jeremy:
Do you have access to a thermal camera? It may reveal heating in the combiner. Burnish the conductors (wires and comb). Replace the breakers. Labor is always more expensive than materials. Breakers can fatigue. Replace the breakers. What is the Voc and Vmppt? Consider replacing the breakers with touch-safe fuses if the voltages even approach 150 VDC. Make certain the combiner is not exposed to sunlight or other heat sources. Good luck. William William Miller Miller Solar www.millersolar.com CA License C-10 77398 *From:* RE-wrenches [mailto:[email protected]] *On Behalf Of *All Solar via RE-wrenches *Sent:* Thursday, April 30, 2026 9:26 PM *To:* [email protected] *Cc:* All Solar *Subject:* [RE-wrenches] Combiner breakers tripping Wrenches, I've got a c client with an Outback PV combiner with DIN mount CBs. He's let me know a few times that 9 of 10 , or at least 50% of the breakers are tripping for no apparent reason. He resets, and all is fine for a few months. I suspect something is wrong with the array vs. the breakers needing replaced. What should I be looking for and checking? The client has made sure the breaker screws are tight. - Off grid - Pole mounted array - Solarex 110 w Modules Regards, Jeremy Rodriguez All Solar
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
