SMA STP 50-41 Three-Phase 50 kW Photovoltaic Inverter
SMA STP 50-41 Three-Phase 50 kW Photovoltaic Inverter
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SMA Sunny Tripower CORE1 STP50-41 – 50 kW Free-Standing Three-Phase Photovoltaic Inverter
The SMA Sunny Tripower CORE1 STP50-41 is the world's first free-standing string photovoltaic inverter, designed for decentralized commercial and industrial rooftop or ground-mounted systems. Belonging to the third generation of the SMA Sunny Tripower CORE1 family, it combines a unique design with an innovative installation method that reduces time and costs, ensuring a faster ROI. Thanks to its 6 independent MPPTs, SMA ShadeFix shading management, and integrated I-V diagnostics, it ensures maximum energy yield in all conditions.
Key Features
- 50 kW rated power – Ideal for commercial and industrial systems
- Free-standing design – Installation without additional structures
- 6 independent MPPTs – Production optimization across multiple strings
- Arc fault circuit protection (AFCI) and AC/DC surge protection (optional)
- Integrated WLAN interface for access from any mobile device
- Direct input for 12 strings – Reduced wiring costs
Benefits for Installers and Customers
- Convenience: No DC fuses required, integrated DC isolator, simplified logistics
- Speed: Quick grid connection and intuitive commissioning
- Maximum yields: Oversizing up to 150%, ShadeFix management included
- Reliability: IP65 protection rating and international certifications
Technical Specifications
| Brand | SMA |
|---|---|
| Model | Sunny Tripower CORE1 STP50-41 |
| Series | CORE1 |
| Product Type | Free-standing three-phase photovoltaic inverter |
| AC Rated Power | 50 kW |
| MPPT | 6 independent |
| DC Input | 12 direct strings, 600 V nominal voltage, max 1000 V |
| Efficiency | 98.4% |
| Protection | IP65, AFCI, AC/DC SPD (optional) |
| Interfaces | WLAN, Ethernet, RS485, Modbus |
| Dimensions / Weight | 733 × 733 × 569 mm – 84 kg |
| Operating Temperature | -25 / +60 °C |
Installation and Use
Thanks to its self-supporting design, the SMA STP50-41 CORE1 can be installed directly on flat surfaces without additional structures. The connection areas are easily accessible, and the integrated DC isolator simplifies maintenance. Perfect for commercial systems from 100 to 300 kWp, both on industrial rooftops and on the ground.
Frequently Asked Questions
What is the advantage of the CORE1 free-standing design?
It reduces installation time and costs, eliminates complex mounting structures, and improves inverter ventilation.
Can I oversize the photovoltaic array?
Yes, up to 150% of the AC rated power, increasing the annual yield.
How does it handle shading?
It includes the SMA ShadeFix function to optimize production even in the presence of partial shading.
Can it be installed outdoors?
Yes, thanks to its IP65 protection rating and resistance to temperatures from -25 to +60 °C.
Related products: SMA CORE1 Series | Official SMA Data Sheet.
Have questions about sizing or compatibility? Request technical advice.
Related terms and queries
SMA STP50-41, SMA CORE1 50 kW, SMA 50kW inverter, free-standing three-phase photovoltaic inverter, commercial SMA solar inverter.
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Important notes: Shipping and order handling costs are not included and will be communicated later during the quoting phase. These costs are due regardless of the chosen delivery method, including pickup at the premises.
Product prices may vary depending on availability and supplier terms at the time of the quote request. Images are for illustrative purposes only and may not accurately reflect the actual product; descriptions may contain errors. We recommend always checking the manufacturer's technical data sheet.
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