Fox ESS · three-phase grid inverter
Fox ESS T Series (G3) inverter, 3–25 kW
The most widely used three-phase range: twelve ratings from 3 to 25 kW. One housing size across the whole series, so the installer does not have to rework switchboard space when the rating changes.
Twelve ratings
Fine steps: 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23 and 25 kW. Match the inverter to the array precisely without paying for unused headroom.
Wide MPPT window
A 140–1000 V range and 140 V start-up voltage — long strings and an early start even in overcast weather.
One housing throughout
Dimensions of 370×480×183.5 mm are identical from T3 to T25: standard switchboard space regardless of rating.
98.6% efficiency
Maximum power point tracking runs at 99.8%. Conversion losses stay low across the whole load range.
Shipped from stock in Krasnodar across Russia. Send us the array size and grid phase configuration — our engineer will check the inverter selection and string layout before dispatch.
Model range and electrical data
← scroll the table →
| Model | Max. PV array, W | Rated power, W | Max. apparent power, VA | Rated current, A | Max. current, A | Strings per tracker |
|---|---|---|---|---|---|---|
| T3-G3 | 4500 | 3000 | 3300 | 4,3 | 4,8 | 1+1 |
| T4-G3 | 6000 | 4000 | 4400 | 5,8 | 6,4 | 1+1 |
| T5-G3 | 7500 | 5000 | 5500 | 7,2 | 8,0 | 1+1 |
| T6-G3 | 9000 | 6000 | 6600 | 8,7 | 9,6 | 1+1 |
| T8-G3 | 12000 | 8000 | 8800 | 11,6 | 12,8 | 1+1 |
| T10-G3 | 15000 | 10000 | 11000 | 14,5 | 15,9 | 1+1 |
| T12-G3 | 18000 | 12000 | 13200 | 17,4 | 19,1 | 1+1 |
| T15-G3 | 22500 | 15000 | 16500 | 21,7 | 23,9 | 2+2 |
| T17-G3 | 25500 | 17000 | 18700 | 24,6 | 27,1 | 2+2 |
| T20-G3 | 30000 | 20000 | 22000 | 29,0 | 31,9 | 2+2 |
| T23-G3 | 34500 | 23000 | 25300 | 33,3 | 36,7 | 2+2 |
| T25-G3 | 37500 | 25000 | 27500 | 36,2 | 39,9 | 2+2 |
Specifications and operating conditions
← scroll the table →
| Max. input voltage | 1100 V DC |
|---|---|
| Start-up voltage | 140 V |
| Rated input voltage | 600 V |
| MPPT voltage range | 140–1000 V |
| Max. input / short-circuit current | 14 A / 18.2 A (T3–T12) · 28 A / 36.4 A (T15–T25) |
| MPP trackers | 2 |
| Efficiency: MPPT / European / max. | 99.8% / 97.8% / 98.6% |
| Grid | 3/N/PE · 220/380, 230/400, 240/415 V · 50/60 Hz |
| Power factor / THDi | 1 (adjustable to 0.8) / <3% |
| Dimensions (W×H×D) / weight | 370 × 480 × 183.5 mm · 17–21 kg |
| Cooling / topology | natural convection or fan · transformerless |
| Operating conditions | −25…+60 °C · up to 3000 m · IP65 · noise <30…<55 dB |
| Night consumption | <3 W |
| Monitoring and communication | Wi-Fi / 4G (optional) · RS485, meter, DRM, Estop · LCD, app, web portal |
| Protection | insulation monitoring, residual current monitoring, DC reverse polarity protection, anti-islanding, AC short-circuit and overcurrent protection, AC overvoltage protection, PV string current monitoring; DC/AC type II SPD, DC switch and AFCI optional |
| Standards | EN 62109-1/-2 · EN 61000-6-1/2/3/4 · EN 50549-1 · VDE-AR-N 4105 · CEI 0-21 · RD 1699 · AS/NZS 4777.2 |
Documents
Official manufacturer datasheets. Installation manuals and certificates are supplied with the order — ask us and we will send them the same day.