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SMA Sunny Tripower X 50kW Solar Inverter - Three Phase
SKU: STP50-80
The SMA Sunny Tripower X 50kW Solar Inverter - Three Phase is a commercial solar inverter designed for medium-sized PV systems where high performance, flexible design, and smart system integration are required. It delivers 50kW rated output power, supports 5 independent MPP trackers with 2 string inputs each, and is built for modern high-power PV modules with a maximum PV system power of 75,000 Wp STC. The inverter also includes integrated smart energy management features, SMA ShadeFix, SMA ArcFix, and SMA Smart Connected, making it a strong choice for advanced commercial installations.
- Manufacturer SMA Solar
The SMA Sunny Tripower X 50kW Solar Inverter - Three Phase is designed for medium-sized commercial solar installations that need strong energy yield, smart monitoring, and future-ready system integration. As part of SMA’s Sunny Tripower X range, it combines 50kW rated AC output with intelligent control features that help support efficient system operation and streamlined commissioning. The datasheet highlights its role as a smart system solution for commercial enterprises, with direct integration into the SMA Commercial Energy Solution and communication via SMA Speedwire.
On the DC side, the inverter supports up to 75,000 Wp STC PV system power, with a maximum input voltage of 1,100V and an MPP voltage range of 200V to 1000V. It includes 5 independent MPP trackers, each with 2 string inputs, allowing flexible array design and effective use of high-power and bifacial PV modules. The unit also provides a maximum usable input current of 40A per MPP tracker and 22A per string, helping it accommodate modern module characteristics.
For performance and protection, the Sunny Tripower X 50 offers 98.1% maximum efficiency and 97.7% European efficiency. It includes DC type I + II and AC type II surge protection, arc-fault circuit interruption compliant with IEC 63027, residual-current monitoring, reverse polarity protection, and grid monitoring. SMA also lists SMA ShadeFix for yield optimisation under partial shading, SMA ArcFix for arc fault detection and prevention, and SMA Smart Connected for early fault detection.
The inverter is built for commercial environments, with an IP65-rated enclosure, OptiCool cooling concept, and an operating temperature range of -25°C to +60°C. It measures 680 × 717.5 × 332 mm, weighs 50.5kg, and supports wall mounting or rack mounting. Connectivity includes Ethernet and Wi-Fi, plus support for SMA Modbus, SunSpec Modbus, and Speedwire. The integrated System Manager function can centrally manage up to 5 subordinate devices, including inverters, charging stations, and energy meters, supporting smarter commercial energy system design.