My inverter insists on trying to get the last few rays, even when the inverter is really seeing 0A. With the lithium battery things are worse, in that the custom "back to grid" settings are unavailable and no amount of fiddling has helped.
So, I'd rather just cut the panels at 4pm daily and put then back on at 8pm (no sun).
I know that the DC from the panels can be severe, so AC breakers are often not recommended, so don't want to size things wrong since it must be somewhat set and forget. For 1.5KW worth of panels (4 x 550W), what automated option could I use. Would the Sonoff Pow2 be an option? With a relay perhaps? Pool pump timer?
As recommended the panel details:
Nominal Max. Power (Pmax): 545W Opt. Operating Voltage (Vmp): 40.80V Opt. Operating Current (Imp): 13.36A Open Circuit Voltage (Voc): 49.52V Short Circuit Current (Isc): 13.94A Module Eﬃciency up to: 21.13%
Put in 2 parallel strings of 2 (4 panels) : +- 80VDC Average @ 26A
Inverter is a 3KVA (2400W) with a maximum limit of 1600w Panels.
Battery is a 2KW Pylontech 48V Lithium battery.
11AM PV1/PV2 Voltage: 84.3V PV1/PV2 Recharging Current: 21.3A
12AM PV1/PV2 Voltage: 82.8V PV1/PV2 Recharging Current: 22.3A
1PM PV1/PV2 Voltage: 82.4V PV1/PV2 Recharging Current: 19.3A
Then goes downhill from there
2PM PV1/PV2 Voltage: 81.4V PV1/PV2 Recharging Current: 4.9A
To clarify, I am asking if there is a SAFE way to automatically (smart timer or Pool Distribution Board Timer) to disconnect the panels from the inverter without annoying the inverter. My best guess, based on @FreeMan is to put a shelly 16A switch on each string of panels (there is 2 strings of 2 panels)