Fronius | 12.5kW Primo Inverter, 240VAC, 1-Phase, 260 - 480 VDC MPPT
Fronius | 12.5kW Primo Inverter, 240VAC, 1-Phase, 260 - 480 VDC MPPT is backordered and will ship as soon as it is back in stock.
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This high-performance single-phase inverter is an excellent choice for residential solar systems, combining a clean, modern design with a transformer-free architecture for quick and straightforward installation. Its user-friendly mounting setup simplifies deployment, while two independent MPPT trackers and support for higher system voltages help optimize energy output. Built-in Wi-Fi and Modbus connectivity allow for easy monitoring and control. Designed with safety and long-term readiness in mind, it accommodates an efficient rapid shutdown option. A wide DC voltage range supports flexible panel layouts, and the inverter’s active cooling technology helps maintain reliable, efficient operation.
| Number of MPP trackers | 2 |
| Recommended PV Power (kWp) | 10.0 - 15.0 kW |
| Max. usable input current | 33.0 / 18.0 A |
| Max. usable input current total | 51 A |
| Max. array short circuit current | 49.5 / 27 A |
| Nominal input voltage (Udc,r) | 425 V |
| DC input voltage range | 80 - 600 V |
| MPP voltage range | 260 - 480 V |
| Max. input voltage | 1000 V |
| Integrated DC string fuse holders | 4- and 4+ for MPPT 1 / no fusing required on MPPT 2 |
| Max. output power 240 V | 12.5 kVA |
| Max. output power 208 V | 12.5 kVA |
| Output configuration | 1~ NPE 208 / 240 V |
| Frequency range | 45 - 66 Hz |
| Frequency | 60 Hz |
| Total harmonic distortion | < 2.5 % |
| Power factor range | 0 - 1 ind./cap. |
| Max. continuous output current 240 V | 52.1 A |
| Max. continuous output current 208 V | 60.1 A |
| OCPD/AC breaker size 208 V | 80 A |
| Max. efficiency | 97.9 % |
| CEC efficiency 240 V | 96.5 % |



