HESP 3-8kW
Three Phase Low Voltage Hybrid Inverter
EU | Three Phase | 1-2 MPPTs
2x Peak Output for Three-Phase Motor Starts
Motor starts and compressor inrush can demand far more power than steady operation; the published peak allowance provides headroom for those brief events. HESP4880SHD3 reaches 16kVA peak output from an 8kW rating for short-duration startup demands from pumps, compressors and other three-phase loads.


Up to 16kW PV Input on the 8kW Model
A larger PV allowance lets the inverter collect more daytime solar energy for loads and battery charging even when real-world panel output is below nameplate rating. The 8kW HESP4880SHD3 can accept up to 16kW of PV input.
Native Three-Phase Output on a 48V Battery Platform
A 48V battery bank can be retained while the inverter supplies native 230/400Vac three-phase output, avoiding the need to move the storage side to a high-voltage battery architecture. The HESP 3–8kW EU operates from a 40–60Vdc battery range and delivers 230/400Vac three-phase output, combining low-voltage storage with three-phase AC power.


200A Hybrid Charging on the 8kW Three-Phase Model
On the 8kW model, 200A hybrid charging reduces battery recovery time after sustained three-phase loads, provided the 48V battery bank and BMS are sized for the current. For the 8kW model, maximum hybrid charging current reaches 200A, while grid or generator charging can reach up to 140A depending on model.
Longer PV Strings with an 800V Input Ceiling
HESP 3–8kW EU supports longer PV strings through its wider solar-voltage window, reducing unnecessary string fragmentation on larger arrays. A maximum PV open-circuit voltage of 800V and a 200–650V MPPT operating window give the HESP three-phase series more flexibility for longer PV strings.
Dedicated Generator Input for Longer Backup
A dedicated generator path extends backup beyond the energy stored in the battery, keeping another source available during prolonged low-solar or weak-grid conditions. When the grid is interrupted, the HESP 3–8kW EU lists a typical 10ms switching time, helping supported loads move quickly to stored-energy operation as part of a multi-source backup design.
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