Hi there,
Installed a RS450/100 3 months ago. The unit charges 2x14.3kwH lithium batteries which feed a Multi II 48/5000. GX to control hardware/ESS. Sizing of the PV arrays was done using Victron's PV sheet/calculator, and all checked out.
- First Tracker runs with 8 x 605W Canadian CS7L-605MS (4840W)
- Second tracker with 6 x CS6W-545MS (3270W)
This past weekend the unit went up in smoke following (appears to be) some of the internal component failure. Fortunately no other damage or fire spread.
The maximum PV input voltage recorded on the unit to date is around 335-340V so well within the 450V nominal voltage,
I know that charge controllers normally fail due to poor terminations on the DC or PV terminals, but this is not the case here. Unit is in a well ventilated area, and it is winter at the moment, so the unit could not have been operating very hot.
I've actioned a warranty claim with my reseller, but I remain concerned as to why this could have happened in the first place.
Anything that I'm missing?
Thanks,
Nick