5KW String Inverter
“Empower Your Home with Smart Solar.”
Seamless grid connection with intelligent energy management.
The Feston 5KW Enfield Series delivers efficient solar energy conversion with grid support. With wide voltage flexibility, low start-up thresholds, and optional smart monitoring, it’s ideal for homes and businesses aiming for reliable, grid-tied solar power.
- Up to 97.5% efficiency
- 1 MPPT tracker, wide range (70–550V)
- Low start-up voltage: 80V
- Zero export & VSG support
- Anti-PID function, IP65 protection
- Natural cooling, ultra-quiet (≤35 dB)
- 10-year warranty
Product Specification
| Model | FE-3.6-1P-0G | FE-4.1-1P-0G | FE-4.6-1P-0G | FE-5.1-1P-0G | FE-5.2-1P-0G | FE-6.1-1P-0G | FE-6.2-1P-0G |
|---|---|---|---|---|---|---|---|
| Input Side | |||||||
| Max. DC Input Power (kW) | 4.7 | 5.2 | 6 | 6.5 | 6.8 | 7.8 | 8.1 |
| Max. DC Input Voltage (V) | 600 | ||||||
| Start-up DC Input Voltage (V) | 80 | ||||||
| MPPT Operating Range (V) | 70–550 | ||||||
| Max. DC Input Current (A) | 20 | ||||||
| Max. Short Circuit Current (A) | 30 | ||||||
| No. of MPPT Trackers | 1 | ||||||
| No. of Strings per MPPT Tracker | 1 | ||||||
| Output Side | |||||||
| Rated Output Power (kW) | 3.6 | 4.1 | 4.6 | 5.1 | 5.2 | 6.1 | 6.2 |
| Max. Active Power (kW) | 3.96 | 4.44 | 5.06 | 5.55 | 5.72 | 6.66 | 6.82 |
| Max. Apparent Output Power (kVA) | 3.96 | 4.44 | 5.06 | 5.55 | 5.72 | 6.66 | 6.82 |
| Rated Output Voltage/Range (V) | 220/230 ±0.85Un ±1Un | ||||||
| Rated Grid Frequency (Hz) | 50 | ||||||
| Operating Phase | Single Phase | ||||||
| Rated AC Grid Output Current (A) | 15.7 | 17.4 | 20 | 21.7 | 22.6 | 26.1 | 27 |
| Max. AC Output Current (A) | 17.2 | 19.1 | 22 | 23.9 | 24.9 | 28.7 | 29.7 |
| Output Power Factor | 0.8 leading to 0.8 lagging | ||||||
| Grid Current THD | <3% | ||||||
| DC Injection Current (mA) | <0.5% | ||||||
| Grid Frequency Range (Hz) | 45–55 | ||||||
| Efficiency | |||||||
| Max. Efficiency | 97.3% | 97.5% | 97.5% | 97.5% | 97.5% | 97.5% | 97.5% |
| Euro Efficiency | 97.1% | 97% | 97% | 97% | 97% | 97% | 97% |
| MPPT Efficiency | >99% | ||||||
| Protection | |||||||
| DC Reverse-Polarity Protection | Yes | ||||||
| AC Short Circuit Protection | Yes | ||||||
| AC Output Overcurrent Protection | Yes | ||||||
| Leakage Current Protection | Yes | ||||||
| Output Overvoltage Protection | Yes | ||||||
| Insulation Resistance Protection | Yes | ||||||
| Ground Fault Monitoring | Yes | ||||||
| Anti-Islanding Protection | Yes | ||||||
| Temperature Protection | Yes | ||||||
| Integrated DC Switch | Optional | ||||||
| Surge Protection | DC Type II / AC Type II | ||||||
| General Data | |||||||
| Size (mm) | 280W × 270H × 172D (Excluding connectors and brackets) | ||||||
| Weight (kg) | 7.7 | ||||||
| Topology | Transformerless | ||||||
| Internal Consumption | <1W (Night) | ||||||
| Running Temperature | -25°C to +60°C, >45°C derating | ||||||
| Ingress Protection | IP65 | ||||||
| Noise Emission (Typical) | <35 dB | ||||||
| Cooling Concept | Natural Cooling | ||||||
| Operating Surroundings Humidity | 0–100% | ||||||
| Max. Operating Altitude Without Derating | 3000 m | ||||||
| Warranty | 10 Years | ||||||
| Compliance | IEC 61727, IEC 62116, IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 | ||||||
| Features | |||||||
| Display | LCD1602 | ||||||
| Interface | RS485 / RS232 / WiFi / GPRS | ||||||