
Fox ESS H3 Pro 20.0kW Hybrid Inverter with ECS4300 Battery stack of 7 - 29.03kWh
FE-H3-PRO-20.0-ECS4300 | Complete 20kW 3PH hybrid system with 29.03kWh ECS4300 battery stack (1 Master + 6 Slave) for enterprise commercial solar + storage deployments.
System Components
- 1x H3 Pro 20kW 3PH Hybrid Inverter FE-H3-PRO-20.0 (3 MPPT/6 strings, 97.4% efficiency)
- 1x ECS4300 Master Battery FE-HV-ECM-4300 (4.14kWh LiFePO4)
- 6x ECS4300 Slave Batteries FE-HV-ECS-4300 (4.14kWh each)
- Total Capacity: 29.03kWh (90% DoD, 6000+ cycles)
- Full 3-phase EPS backup with 22kW surge (1 sec)
Key System Performance
| Inverter Rated Power | 20kW (3-phase) |
| Max PV Input | 30kW (3 MPPT/6 strings) |
| Battery Voltage Range | 160-1000V DC |
| Max Charge/Discharge | 100A continuous |
| Round Trip Efficiency | >95% |
| Max Efficiency | 97.4% |
Battery Specifications (ECS4300 Stack)
| Total Capacity | 29.03kWh |
| Nominal Voltage | 403.2V (7 modules) |
| Operating Voltage | 340.2-459.9V |
| Recommended Current | 35A |
| Max Charge/Discharge | 50A |
| Peak Discharge | 65A (30 sec) |
Mechanical & Installation
| Inverter Dimensions | 449 × 519 × 198 mm (52.5kg) |
| Battery Stack Dimensions | 570 × 950 × 380 mm |
| Total System Weight | 320+ kg |
| Protection Rating | IP65 (all components) |
| Cooling | Intelligent air cooling |
Features & Warranty
- Plug-and-play with 3PH meter, CT clamps, MC4 connectors included
- Parallel up to 10 inverters (200kW / 290kWh total systems)
- Requires H3 Pro EMS box for multi-unit coordination
- 5-year inverter warranty (extendable to 10 years via registration)
- 10-year battery warranty at 6000+ cycles (90% DoD)
- G99 compliant with Octopus Energy smart tariff integration
MPN: FE-H3-PRO-20.0-ECS4300
Model: H3 Pro 20kW + ECS4300 Stack x7 (29.03kWh)
Complete turnkey commercial hybrid power system delivering 20kW three-phase output with 29kWh high-voltage storage, full EPS backup, and enterprise scalability for maximum energy independence.
Original: $18,035.64
-65%$18,035.64
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Fox ESS H3 Pro 20.0kW Hybrid Inverter with ECS4300 Battery stack of 7 - 29.03kWh
FE-H3-PRO-20.0-ECS4300 | Complete 20kW 3PH hybrid system with 29.03kWh ECS4300 battery stack (1 Master + 6 Slave) for enterprise commercial solar + storage deployments.
System Components
- 1x H3 Pro 20kW 3PH Hybrid Inverter FE-H3-PRO-20.0 (3 MPPT/6 strings, 97.4% efficiency)
- 1x ECS4300 Master Battery FE-HV-ECM-4300 (4.14kWh LiFePO4)
- 6x ECS4300 Slave Batteries FE-HV-ECS-4300 (4.14kWh each)
- Total Capacity: 29.03kWh (90% DoD, 6000+ cycles)
- Full 3-phase EPS backup with 22kW surge (1 sec)
Key System Performance
| Inverter Rated Power | 20kW (3-phase) |
| Max PV Input | 30kW (3 MPPT/6 strings) |
| Battery Voltage Range | 160-1000V DC |
| Max Charge/Discharge | 100A continuous |
| Round Trip Efficiency | >95% |
| Max Efficiency | 97.4% |
Battery Specifications (ECS4300 Stack)
| Total Capacity | 29.03kWh |
| Nominal Voltage | 403.2V (7 modules) |
| Operating Voltage | 340.2-459.9V |
| Recommended Current | 35A |
| Max Charge/Discharge | 50A |
| Peak Discharge | 65A (30 sec) |
Mechanical & Installation
| Inverter Dimensions | 449 × 519 × 198 mm (52.5kg) |
| Battery Stack Dimensions | 570 × 950 × 380 mm |
| Total System Weight | 320+ kg |
| Protection Rating | IP65 (all components) |
| Cooling | Intelligent air cooling |
Features & Warranty
- Plug-and-play with 3PH meter, CT clamps, MC4 connectors included
- Parallel up to 10 inverters (200kW / 290kWh total systems)
- Requires H3 Pro EMS box for multi-unit coordination
- 5-year inverter warranty (extendable to 10 years via registration)
- 10-year battery warranty at 6000+ cycles (90% DoD)
- G99 compliant with Octopus Energy smart tariff integration
MPN: FE-H3-PRO-20.0-ECS4300
Model: H3 Pro 20kW + ECS4300 Stack x7 (29.03kWh)
Complete turnkey commercial hybrid power system delivering 20kW three-phase output with 29kWh high-voltage storage, full EPS backup, and enterprise scalability for maximum energy independence.
Product Information
Product Information
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Description
FE-H3-PRO-20.0-ECS4300 | Complete 20kW 3PH hybrid system with 29.03kWh ECS4300 battery stack (1 Master + 6 Slave) for enterprise commercial solar + storage deployments.
System Components
- 1x H3 Pro 20kW 3PH Hybrid Inverter FE-H3-PRO-20.0 (3 MPPT/6 strings, 97.4% efficiency)
- 1x ECS4300 Master Battery FE-HV-ECM-4300 (4.14kWh LiFePO4)
- 6x ECS4300 Slave Batteries FE-HV-ECS-4300 (4.14kWh each)
- Total Capacity: 29.03kWh (90% DoD, 6000+ cycles)
- Full 3-phase EPS backup with 22kW surge (1 sec)
Key System Performance
| Inverter Rated Power | 20kW (3-phase) |
| Max PV Input | 30kW (3 MPPT/6 strings) |
| Battery Voltage Range | 160-1000V DC |
| Max Charge/Discharge | 100A continuous |
| Round Trip Efficiency | >95% |
| Max Efficiency | 97.4% |
Battery Specifications (ECS4300 Stack)
| Total Capacity | 29.03kWh |
| Nominal Voltage | 403.2V (7 modules) |
| Operating Voltage | 340.2-459.9V |
| Recommended Current | 35A |
| Max Charge/Discharge | 50A |
| Peak Discharge | 65A (30 sec) |
Mechanical & Installation
| Inverter Dimensions | 449 × 519 × 198 mm (52.5kg) |
| Battery Stack Dimensions | 570 × 950 × 380 mm |
| Total System Weight | 320+ kg |
| Protection Rating | IP65 (all components) |
| Cooling | Intelligent air cooling |
Features & Warranty
- Plug-and-play with 3PH meter, CT clamps, MC4 connectors included
- Parallel up to 10 inverters (200kW / 290kWh total systems)
- Requires H3 Pro EMS box for multi-unit coordination
- 5-year inverter warranty (extendable to 10 years via registration)
- 10-year battery warranty at 6000+ cycles (90% DoD)
- G99 compliant with Octopus Energy smart tariff integration
MPN: FE-H3-PRO-20.0-ECS4300
Model: H3 Pro 20kW + ECS4300 Stack x7 (29.03kWh)
Complete turnkey commercial hybrid power system delivering 20kW three-phase output with 29kWh high-voltage storage, full EPS backup, and enterprise scalability for maximum energy independence.












