12KW String Inverter
“Dual MPPT. Double the Performance.”
High-efficiency three-phase inverter for maximum solar yield.
The Feston 12KW Enfield Series offers high-performance three-phase on-grid inverters from 4kW to 12kW, ideal for residential and commercial solar systems. With dual MPPTs, up to 98.3% efficiency, and robust protection features, it ensures maximum energy yield and long-term reliability.
- Dual MPPTs with wide voltage range
- Max efficiency upto 98.3%
- Anti-PID function & Zero Export
- IP65, Natural Cooling, ≤30 dB noise
- Surge protection: DC & AC Type II
- Communication: RS485 / RS232 / WiFi / GPRS
- 10-Year Warranty
Product Specification
| Model | FE-4-3P-0G | FE-5-3P-0G | FE-6-3P-0G | FE-7-3P-0G | FE-8-3P-0G | FE-10-3P-0G | FE-12-3P-0G |
|---|---|---|---|---|---|---|---|
| Input Side | |||||||
| Max. DC Input Power (kW) | 5.2 | 6.5 | 7.8 | 9.1 | 10.4 | 13 | 15.6 |
| Max. DC Input Voltage (V) | 1100 | ||||||
| Start-up DC Input Voltage (V) | 140 | ||||||
| MPPT Operating Range (V) | 120–1000 | ||||||
| Max. DC Input Current (A) | 20 + 20 | ||||||
| Max. Short Circuit Current (A) | 30 + 30 | ||||||
| No. of MPPT Trackers | 2 | ||||||
| No. of Strings per MPPT Tracker | 1 + 1 | ||||||
| Output Side | |||||||
| Rated Output Power (kW) | 4 | 5 | 6 | 7 | 8 | 10 | 12 |
| Max. Active Power (kW) | 4.4 | 5.5 | 6.6 | 7.7 | 8.8 | 11 | 13.2 |
| Max. Apparent Output Power (kVA) | 4.4 | 5.5 | 6.6 | 7.7 | 8.8 | 11 | 13.2 |
| Rated Output Voltage/Range (V) | 3L/N/PE 220/380V, 230/400V 0.85Un–1.1Un (may vary with grid) | ||||||
| Rated Grid Frequency (Hz) | 50 | ||||||
| Operating Phase | Three phase | ||||||
| Rated AC Grid Output Current (A) | 6.1/5.8 | 7.6/7.2 | 9.1/8.7 | 10.6/10.1 | 12.1/11.6 | 15.2/14.5 | 18.2/17.4 |
| Max. AC Output Current (A) | 6.7/6.4 | 8.3/8 | 10/9.6 | 11.7/11.1 | 13.3/12.8 | 16.7/15.9 | 20/19.1 |
| 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 | 98.3% | ||||||
| Euro Efficiency | 97.5% | ||||||
| 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) | 285W × 525H × 186D (Excluding connectors and brackets) | ||||||
| Weight (kg) | 11 | ||||||
| Topology | Transformerless | ||||||
| Internal Consumption | <1W (Night) | ||||||
| Running Temperature | -25°C to +60°C, >45°C derating | ||||||
| Ingress Protection | IP65 | ||||||
| Noise Emission (Typical) | <30 dB | ||||||
| Cooling Concept | Natural cooling | ||||||
| Operating Surroundings Humidity | 0–100% | ||||||
| Max. Operating Altitude Without Derating | 4000 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 | LCD1262 | ||||||
| Interface | RS485 / RS232 / WiFi / GPRS | ||||||