Solar Inverters

SMA 15kW 3Ph (STP 15-50 (AS4777-2 2020))

The SMA STP 15-50 is a 3-phase, 15 kW grid-tie string inverter aimed at commercial or large residential PV installations. It features 3 MPPT trackers, broad DC input capability (up to 1000 V), compatibility with modern high-power solar modules, and integrates advanced yield-optimizing and safety functions — making it suitable for robust, large-scale rooftop or ground-mounted PV systems.

  • Product Code:20104
  • Model No.:STP 15-50 (AS4777-2 2020)

3 Independent MPPT Trackers for Flexible PV Layouts: STP 15-50 provides three independent MPPT inputs, letting you connect up to 6 PV strings (2 per MPPT). This enables flexible panel layout: different roof orientations, string sizing, and shading-resilient configuration.

Wide DC Input Range & High Compatibility with Modern PV Modules: It supports a wide DC input voltage range (MPP range ~ 275 V–800 V, start-up as low as 150 V) and maximum DC input voltage up to 1000 V, making it compatible with large, high-wattage PV modules or long-string configurations.

High Efficiency & Strong Conversion Performance: The inverter achieves a maximum conversion efficiency of up to ~ 98.2 % and European (weighted) efficiency around 97.7–97.8 %. This ensures minimal conversion losses and maximized energy yield from the PV array.

Smart System Management & Advanced Yield / Safety Features: STP 15-50 integrates the “System Manager” framework — allowing up to 5 inverters + 1 energy meter to be managed centrally. It supports functions like dynamic power control (active/reactive), remote monitoring via the vendor’s platform (e.g. Sunny Portal / ennexOS), and come-with built-in yield-optimizing features (such as partial shading optimization) and safety measures (e.g. arc-fault protection, DC surge protection).

  • Rating (kW) : 15,000 W (15 kW AC)
  • MPPT : 3 independent MPPT inputs
  • Max. DC-Input Capacity : Up to 22,500 Wₚ (DC)
  • Weight (kg) : 35
  • IP Rating : IP65
  • Dimension (W/D/H) : 728*266*762
  • Product Warranty (Years) : 3-phase
  • Product Warranty (Years) : 5 years

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