Brand new HOBER HSPH5500H 5.5kW hybrid solar pumping inverter for three-phase 380/400/440V AC pumps. Solar input range: 400–800VDC; recommended panel voltage: at least 500V for solar-only operation or 540V for hybrid operation. Supports three-phase 380/400/440V grid or generator input at 50/60Hz, with solar priority and automatic power supplementation for reliable water supply. Advanced dynamic MPPT efficiency above 99%. Aluminum IP65 enclosure with dual cooling, one-key automatic operation, RS232 and optional 4G/Wi-Fi remote monitoring. Protection includes dry-run, under/overvoltage, overload, overcurrent, phase loss, short circuit and overheating. Suitable for boreholes, irrigation, livestock and domestic water supply. Dimensions approximately 48 × 30 × 20cm; gross weight 7.5kg. Professional system sizing and installation recommended.