Hi there! Based on your interest in 3-phase inverters, I would recommend taking a closer look at the Sunsynk 12KW 3-PHASE Hybrid Pv Inverter 48V IP65 Off-grid & Grid-tied and the GOODWE Hybrid Inverter Li-ion Battery 3-PHASE 10KW. These highly rated hybrid inverters allow you to power your home or business from solar and also have battery backup, providing reliability and lower energy costs. They are able to handle 3-phase loads and have features like dual MPPT for maximum solar harvesting. The Sunsynk model is available for R50505 and the GOODWE for R36499 according to my PriceCheck search. Let me know if you need any other details on these options or have additional requirements to consider. I'm here to help you find the best solution.