FOXESS 5kW / 27.84kWh Battery System — 3 Phase
$11,548.50
FOXESS H3 5.0 kW three-phase hybrid inverter + 27.84 kWh CQ7 storage (4 modules) · backup supply · new install or AC-coupled retrofit
In one line
The FOXESS 5kW 27.84kWh 3 Phase battery system: a 5 kW hybrid inverter paired with 27.84 kWh of storage, supplied and installed as one package.
Who this suits
Three-phase property, smaller array.
Before you choose on size
Federal battery certificates are tiered — weighted toward the first 14 kWh of usable capacity, tapering from 14 to 28 kWh, and small above that. A larger battery does not attract a proportionally larger discount. Choose capacity on your evening and overnight usage and whether you want extended backup, not on the rebate.
→ How the rebates work
What is in the FOXESS 5kW 27.84kWh 3 Phase battery system
A complete three-phase energy system: the FOXESS H3-5.0-Smart hybrid inverter with a 27.84 kWh CQ7 high-voltage battery stack — one master unit plus three modules at 6.96 kWh each, all usable.
The three-phase version suits properties already on a three-phase supply. Victorian networks generally allow more export from a three-phase connection than a single-phase one, and a three-phase inverter spreads its output across all three phases, so it usually gets more energy away than a single-phase unit on the same supply. The included three-phase smart meter comes with six CTs: three measure import and export at the grid connection, and three can monitor an existing solar inverter if the system is AC-coupled.
The 5 kW inverter accepts up to 11 kW of panels (220% of its rating) across three MPPT inputs, and its backup (EPS) output keeps nominated circuits running from the battery during an outage. The system installs as new solar or AC-couples onto an existing array.
Key specifications
- Inverter: FOXESS H3-5.0-Smart hybrid, three phase, 5 kW
- Solar: up to 11 kW of panels across 3 MPPT inputs
- Battery: FOXESS CQ7, one CQ7-M master and three CQ7-S modules, 27.84 kWh usable (lithium iron phosphate)
- Backup: EPS output for nominated circuits, switchover under 20 ms
- Metering: three-phase smart meter with six CTs
- Battery size: 660 × 360 mm footprint, about 730 mm tall, about 207 kg
- Protection: IP65 inverter and battery
- Monitoring: FoxCloud app and web portal
- Warranty: 10 years on the inverter and the battery (battery to 70% of its energy or a set throughput, whichever comes first)
Not sure 27.84 kWh is the right size? Build your system recommends an inverter and battery from your usage, roof and phase, and our home battery page explains how storage works with solar.
Want more detail before you choose? Read our guides to the FOXESS H3 Smart three-phase inverter, the FOXESS CQ7 battery and FOXESS backup and the AirGate.
Panels, mounting and installation are quoted separately after a site assessment. Indicative values are not a quote.
Manufacturer information on the FOXESS battery system: FOXESS CQ7 battery. You can check any battery on the Clean Energy Council approved batteries list.
Additional information
| Brand | FOXESS |
|---|---|
| Phase | 3 Phase |
| Inverter Output | 5 kW |
| Battery Capacity | 27.84 kWh |
| CT Configuration | 6CT |
