Fox ESS KH9.9 9.9kW Hybrid Inverter
Price on request
Full specifications
| Brand | Fox ESS |
| Inverter Specifications | |
| Model | KH9.9 |
| Inverter type | Hybrid |
| Grid type | Single Phase |
| IP class | IP65 |
| PV Input Data | |
| Max DC input power | 20000 W |
| PV input voltage | 600 V |
| MPPT voltage range | 80-500 V |
| Max. PV input current | 16 A |
| No. of MPPT | 4 |
| No. of strings per MPPT | 1 |
| Startup voltage | 75 V |
| AC Output Data | |
| Rated AC output | 9900 W |
| Rated AC output current | 43.0 A |
| Rated voltage | 230 V |
| Parallel operation | Yes |
| Power factor | 0.8 leading to 0.8 lagging |
| Battery Data | |
| Battery type | Lithium |
| Battery voltage range | 85-480 V |
| Max. charging current | 50 A |
| Max. discharging current | 50 A |
| BMS | CAN / RS485 |
| Protections | |
| PV arc fault detection | Yes |
| PV reverse polarity detection | Yes |
| Insulation resistance detection | Yes |
| Leakage current detection | Yes |
| AC overcurrent protection | Yes |
| Output short circuit protection | Yes |
| Surge protection | Yes |
| Over voltage protection | Yes |
| General Specifications | |
| Weight | 29 kg |
| Operating temperature | -25°C ~ +60°C |
| Max. efficiency | 97.8% |
| Size (W×H×D) | 450 × 527 × 208 mm |
Note: High-voltage battery platform - 85-480 V, not a 48 V bank, so it pairs with Fox ESS HV stacks rather than a standard low-voltage lithium. EPS output 9900 VA continuous and 12000 W peak for 60 s, switching over in under 10 ms. Grid input accepts 78.3 A / 18000 VA, which is what lets it pass a large load through while charging. Parallels to 10 units. IP65 for outdoor mounting. MPPT window 80-500 V, nominal DC operating point 360 V.