
Fox ESS H3-Pro-29.9 29.9kW Three-Phase Hybrid Inverter HV 3 MPPT
The H3-Pro-29.9 is the 29.9kW three-phase hybrid inverter in the Fox ESS Pro line, the size intended for a workshop, a farm or an apartment block with serious consumption. It handles solar production, high voltage storage and supplying the loads during an outage, with full three-phase emergency capability.
The dual battery input makes connecting two storage towers straightforward: the inverter takes at most 2 stacks of 7 modules each (1 master and 6 slaves), for a total of 2 masters and 12 slaves. Battery sizing has to be checked against the manufacturer guide, since it depends on the module model chosen.
On the DC side it accepts up to 45000W of modules, with 3 MPP trackers spread over 6 MC4 inputs, 32A per input and an MPPT window from 160V to 1000V; declared European efficiency is 97.4% and the DC isolator is built in. The smart meter and the Wi-Fi dongle for remote monitoring are both supplied. Warranty is 5 years as standard, extendable to 10 years by registering the product. Installation and commissioning must be carried out by qualified personnel.
Key strengths
Technical specifications
| Feature | Value |
|---|---|
| Product code | FE-H3-PRO-29.9 |
| Manufacturer | Fox ESS |
| Series | H3 Pro |
| Type | Three-phase hybrid inverter for high voltage batteries |
| Grid connection | Three-phase |
| Rated power | 29.9kW (29900W) |
| Maximum AC power (5 minutes) | 29900W |
| Maximum DC power from modules | 45000W |
| Number of MPPTs | 3 |
| DC inputs | 6 with MC4 connectors (6 connectors included) |
| Maximum DC current per input | 32A |
| MPPT voltage window | 160-1000V |
| Start-up voltage | 160V |
| Maximum DC voltage | 1000V |
| European efficiency | 97.4% |
| Built-in DC isolator | Yes |
| Battery inputs | 2 |
| Battery voltage | High voltage (HV) |
| Maximum storage configuration | 2 stacks of 7 modules (1 master + 6 slaves per stack) |
| Backup function | Full three-phase |
| Monitoring | Wi-Fi dongle included, remote control |
| Energy meter | Smart meter included |
| Warranty | 5 years, extendable to 10 on registration |
| Length | 0.74m |
| Weight | 54kg |