Greetings Mac, If you haven't already done so it may be interesting to check the actual current when the circuit breaker trips. Put a reliable DC clamp-on current meter on one of the charge controller's output conductors, set it to log the maximum current, and operate the load in question. See what the max current is when the circuit breaker trips.
Also; I am curious if the existing charge controller output circuit breaker is a model which is rated for 100% continuous duty? If it is not and the max current measured is not too great it may be possible to swap it out for one which is 100% continuous duty rated and still maintain the same amperage circuit breaker. Best regards, ----MATT Matthew Sirum P.O. Box 1227 Greenfield, MA 01302-1227 USA phone: +1.413.773.0611 email: [email protected] ---------- Original Message Below ---------- [RE-wrenches] Breaker trip Mac Lewis maclewis1 at gmail.com Wed Dec 6 04:18:11 PST 2017 Hello wrenches, I've got a mysterious breaker tripping that I need some ideas on how to fix. Original system: Array 6 x 235W Kyocera modules 1 x Outback FM60 charge controller 1 x Magnum MS 4024 PAE inverter Upgraded system we stacked a second inverter to accommodate an air compressor: Array 6 x 235W Kyocera modules 1 x Outback FM60 charge controller *2 x Magnum MS 4024 PAE inverter* There have been no changes to the solar array, just to the inverter side of the system. We have been getting intermittent breaker tripping (a couple of weeks between) on the battery breaker side of the charge controller. The basics have been checked and rechecked. Torque is good on all sides of the breaker all the way to the battery bussing. The only thing that I can think of is that during a surge on the AC side its sucking enough current out of the charge controller caps to trip this breaker occasionally. Has anyone experienced this? The only way I can see to fix it is to go with a larger breaker ampacity, but maybe there is something better. Does anyone no how quickly the max current setting in the Outback can respond, would dropping this help? Thanks -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates* _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
