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
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50 kW three-phase transformerless inverter
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Max. efficiency 98.5 %, Euro efficiency 98.2 %
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IP65 outdoor-rated with active cooling
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Integrated DC disconnector, surge protection (Type 1 + 2)
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Advanced grid support (0–1 cos φ ind./cap.)
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Ethernet, Modbus TCP/RTU, WLAN, and API connectivity
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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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