REFUsol 50K-4T - String inverter
Product information "REFUsol 50K-4T - String inverter"
The REFUsol 50K-4T is a highly efficient 50 kW string inverter with four MPP trackers and an efficiency of up to 98.8% – ideal for large commercial and industrial PV systems.
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REFUsol 50K-4T – High performance for demanding PV projects
The REFUsol 50K-4T impresses with state-of-the-art inverter technology and maximum flexibility. Thanks to its four independent MPP trackers (two DC inputs each), even complex roof or ground-mounted layouts can be optimally implemented. With an efficiency of up to 98.8% and a long-term overload capacity of 110%, it ensures maximum energy yield and reliable continuous operation under the most demanding conditions.
Highlights
- 4 independent MPP trackers (2 DC inputs each) for flexible string configurations
- Max. efficiency: 98.8% / EU efficiency: 98.2%
- 110% overload capacity for greater energy yield
- Compact, robust IP65 housing with active cooling
- Communication via RS485, USB, Ethernet or optional WiFi logger
- Intuitive operation via LCD display; online monitoring via REFUview
- Integrated DC load disconnect switch and comprehensive protection functions
- 10-year manufacturer’s warranty
Technical data – REFUsol 50K-4T
| Rated power (AC) | 50 kW |
|---|---|
| Max. AC power | 55 kVA |
| Recommended PV output | up to 75 kWp |
| Max. input voltage (DC) | 1100 V |
| Operating voltage range (DC) | 180 – 1000 V |
| MPP operating range | 540 – 850 V |
| Number of MPP trackers | 4 (2 inputs each) |
| Max. current per MPPT | 40 A |
| Max. short-circuit current | 50 A |
| Max. output current (AC) | 83.3 A |
| Mains connection | 3P/N/PE – 230/400 V, 50/60 Hz (310–480 V range) |
| THDi | < 3 % |
| Power factor | 1 (0.8 inductive ... 0.8 capacitive) |
| Topology | Transformerless |
| Protection class | IP65 |
| Cooling | Active (fan-assisted) |
| Dimensions (H × W × D) | 480 × 585 × 220 mm |
| Weight | 37 kg |
| Display | LCD |
| Item number | 853P050 |
| Warranty | 10 years |
Safety & Communication
The REFUsol 50K-4T features an integrated DC load break switch and comprehensive protection mechanisms against anti-islanding, DC reverse polarity, reverse current, earth fault, overtemperature, overvoltage and overcurrent. Communication is via RS485, USB, Ethernet or an optional WiFi logger. Remote monitoring and data analysis are possible via the REFUview platform. An integrated LCD display also enables convenient local operation.
Applications
- Commercial rooftop installations and carport systems
- Industrial and agricultural installations in the medium-power segment
- Ground-mounted systems with varying orientations
- Repowering and expansion of existing PV systems
Conclusion
The REFUsol 50K-4T combines maximum efficiency with high system flexibility and robust construction. The ideal choice for professional photovoltaic projects that prioritise reliability, future-proofing and maximum performance.
| Item height (mm): | 229 |
|---|---|
| Item length (mm): | 480 |
| Item width (mm): | 585 |
| Manufacturer's part number: | 853P050.000 |
| Weight (kg): | 37 |
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