Re: [RE-wrenches] SMA arc faults

2021-12-18 Thread Dave Tedeyan
Hi Mac, Might I ask what modules these are connected to? There is some history here with Sunpower modules (and possibly other high power, high voltage modules). In these cases the issue is the module. If that's the case I can provide some more detail about it. As for remote resetting, it is actua

Re: [RE-wrenches] SMA arc faults

2021-12-18 Thread Jason Szumlanski
I haven't seen many, but every one I've seen has been a melted MC4 connector. Jason Szumlanski Florida Solar Design Group On Sat, Dec 18, 2021, 3:21 PM Jerry Shafer wrote: > Over the years every SMA arcfault has been real, l am also not saying > hazard, well, AC, welding, all creat Arc noise in

Re: [RE-wrenches] SMA arc faults

2021-12-18 Thread Jerry Shafer
Over the years every SMA arcfault has been real, l am also not saying hazard, well, AC, welding, all creat Arc noise in the system and it can be from a normal contactor arc. I have also seen AM arc faults caused by defective or knock off MC connectors, in adequately stripped wires that result in th

[RE-wrenches] SMA arc faults

2021-12-18 Thread Mac Lewis
Hi Wrenches, I have spent this last week clearing arc faults on SMA inverters. There never appears to be a true arc event, just the occasional event and then lockout. What is the best approach to fix these tripping inverter issues? Is there a way to decrease the sensitivity? Any procedures tha