Fronius Tauro ECO 50-3-D is a 50 kW three-phase grid-tie inverter built for maximum reliability and efficiency in large-scale commercial PV systems. Designed for harsh outdoor environments, it features active cooling, IP65 protection, and Type 1 + 2 surge protection. Its decentralized “D” variant architecture simplifies installation and reduces BOS costs, while smart digital interfaces enable seamless integration with energy management systems and Fronius Solar.web monitoring.
Key Features
50 kW three-phase transformerless inverter
Max. efficiency 98.5 %, Euro efficiency 98.2 %
IP65 outdoor-rated with active cooling
Integrated DC disconnector, surge protection (Type 1 + 2)
Advanced grid support (0–1 cos φ ind./cap.)
Ethernet, Modbus TCP/RTU, WLAN, and API connectivity
Rapid service access and modular maintenance design
Technical Data Table
| Parameter | Specification |
|---|---|
| AC nominal output power | 50 kW |
| Max. efficiency | 98.5 % |
| DC input voltage range | 580 – 1000 V |
| MPP voltage range | 580 – 930 V |
| Max. PV generator power | 75 kW p |
| AC voltage | 3 ~ NPE 400/230 V |
| Frequency range | 45 – 65 Hz |
| Power factor | 0 – 1 (ind./cap.) |
| Protection rating | IP65 |
| Operating temperature | –40 °C to +65 °C |
| Weight | 74 kg |
| Cooling | Active with double-wall system |
| Communication | Ethernet LAN, WLAN, RS485, Modbus TCP/RTU, Solar API |
| Overvoltage protection | Type 1 + 2 integrated |
| Compliance | IEC 62109-1/-2, VDE-AR-N 4110, EN 50549-1/-2 |
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