ST-GR series · 4 – 6 kW
IP65 hybrid inverter for outdoor installation, with grid export, SPD, AC-coupling and generator compatibility at an accessible price.
Price on request
The ST-GR series combines a dust-tight, water-jet-resistant IP65 enclosure with excellent value for money. It can be mounted under eaves or in unconditioned spaces and accepts up to 12 kW of panels on two MPPTs.
Outdoor installation, garages, outbuildings and prosumers looking for a robust, affordable hybrid.
A tailored quote with system sizing, delivery across Romania, help with configuration and local service in Satu Mare.
| Model | SUNT-4.0kW-ST-GR | SUNT-6.0kW-ST-GR |
|---|---|---|
| Battery input (DC) | ||
| Supported battery type | LiFePO4 or lead-acid | |
| Battery input voltage range (V) | 40 ~ 60 | |
| Max. charge voltage (V) | 60 (configurable) | |
| Max. charge current (A) | 80 (configurable) | 120 (configurable) |
| Max. discharge current (A) | 90 (configurable) | 130 (configurable) |
| Recommended battery capacity (Ah) | 100 ~ 2000 | |
| Charging LiFePO4 battery packs | Communicates with the battery BMS | |
| PV string input (DC) | ||
| Max. DC input power (W) | 8000 | 12000 |
| Max. DC input voltage (V) | 500 | |
| MPPT voltage range (V) | 90 ~ 450 | |
| Start-up voltage (V) | 150 | |
| Max. input current (A) | 15 × 2 = 30 (2 MPPT) | 20 × 2 = 40 (2 MPPT) |
| AC output (back-up, essential loads) | ||
| Max. output power (W) | 4000 | 6000 |
| Max. output apparent power (VA) | 4000 | 6000 |
| Peak output apparent power (VA) | 8000 | 12000 |
| Max. output current (A) | 18 | 27 |
| Nominal output voltage (Vac) | 220/230/240 (configurable), single phase | |
| Nominal output frequency (Hz) | 50/60 (±0.2%) (configurable) | |
| Max. bypass current (A) | 40 | |
| Shift time bypass / inverter (ms) | 10 | |
| Output THD (resistive load) | < 3% | |
| AC input (on-grid) | ||
| Max. input power – bypass / battery charging (W) | 4000 | 6000 |
| Max. output power fed to home load (W) | 4000 | 6000 |
| Max. apparent input power (VA) | 4000 | 6000 |
| Max. apparent output power to home load (VA) | 4000 | 6000 |
| Nominal input / output voltage (V) | 220/230/240 (auto-adjusted to the grid), single phase | |
| Nominal input / output frequency (Hz) | 50/60 (auto-adjusted to the grid) | |
| Efficiency | ||
| Max. efficiency | 97.6% | |
| Max. battery-to-load efficiency | 94.0% | |
| European efficiency | 97.6% | |
| MPPT efficiency | 99.9% | |
| Protection | ||
| Integrated protection | Anti-islanding, battery over-charge, battery low voltage, over-temperature, output overload, output short circuit, output over-voltage | |
| Certifications & standards | ||
| Grid regulation | VDE-AR-N 4105; UNE 217001; G100; EN 50549-1 | |
| Safety / EMC | IEC 61727; IEC 62116; IEC 61683; IEC/EN 61000-6-1/3; IEC/EN 62109-1/2 | |
| General data | ||
| Display | Segment LCD | |
| MPPT strings | 2 | |
| Operating temperature range | -25 ~ 60°C (derating above 35°C) | |
| Protection degree | IP65 | |
| Product / package size (mm) | 402×178×520 / 470×248×560 | |
| Net / gross weight (kg) | 16.5 / 18.5 | |
Documentation for this product will be available soon. You can always request it through the quote form.
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