HESP 15-18kW
Three Phase Low Voltage Hybrid Inverter
US | Three Phase | 3 MPPTs
Handle Uneven 120/208V Loads with 150% Unbalanced Support
Unbalanced-load capability allows the inverter to serve real three-phase systems where branch-circuit demand is not evenly distributed across all phases. The HESP 14–18kW US datasheet states support for 150% single-phase unbalanced load output and also lists a three-phase input/output function without an N wire.
Three MPPTs for High-Current, Multi-Array PV Systems
Three independent MPPTs let larger PV fields be divided by orientation and string group, while the higher current allowance better suits modern high-current modules. Maximum PV input reaches 22.4kW, 25.6kW and 28.8kW for the 14kW, 16kW and 18kW models respectively—1.6× the corresponding rated AC power.
Dual Battery Inputs for Up to 350A Charge/Discharge
Dual battery inputs provide two dedicated connection paths for the 14–18kW platform, while charge/discharge current rises to 350A on the 18kW model. HESP48140UH3, HESP48160UH3 and HESP48180UH3 all provide dual battery inputs.
2x Off-Grid Peak Output for Motors up to 11HP
The 18kW HESP combines 2x off-grid peak output with an 11HP motor reference, giving larger three-phase motor loads more starting reserve. Off-grid peak power is specified at 28kVA, 32kVA and 36kVA for the 14kW, 16kW and 18kW models.
Scale the HESP Platform to 162kW
Nine-unit parallel capability lets large residential or light-commercial projects add inverter power in stages instead of installing the full final capacity on day one. With nine 18kW HESP48180UH3 units, the published system example reaches 162kW while keeping the same 48V three-phase inverter family.
Carry Large Grid-Supplied Loads Through a 200A Bypass Path
The 200A grid-bypass path allows substantial utility-supplied loads to pass through the inverter without drawing the same power from the battery. This keeps battery capacity available for backup or energy management while large site loads remain on grid supply; bypass current remains separate from the inverter's 14–18kW rated output.
OVERVIEW
