Hello,
Would connecting Phoenix 250VA directly to Load terminals of MPPT 100/20 (with connected battery of course) work or start curent draw peak from inverter will trigger solar controler's overcurrent protection? The load on the inverter would be 150W max and the battery is LiFePO.
No. Load output is not suitable for loads like an inverter.
https://www.victronenergy.com/media/pg/Manual_SmartSolar_MPPT_75-10_up_to_100-20/en/features.html#UUID-c2b1f357-ff37-9fae-5bfa-a8ba2185fd92
Some loads, particularly inverters, have a higher current rating or high start-up current rating, exceeding the load output's capacity. These loads should be connected directly to the battery.
