SMA Sunny Tripower CORE1 50kW STP50-41 Three-Phase Solar Inverter

Product description

The SMA Sunny Tripower CORE1 50kW STP50-41 Three-Phase Solar Inverter is the first stand-alone string inverter (“stands on its own”) for commercial and field installations. Its self-supporting design accelerates commissioning and reduces structure and labor costs, while the power electronics with OptiCool cooling and IP65 protection ensure maximum reliability outdoors. With 6 MPPTs and 12 string inputs, it offers great design flexibility for rooftops with multiple orientations, solar carports, or decentralized plants, maintaining benchmark performance and full system control from Sunny Portal.

Main features

• Nominal power 50 kW at 230/400 V three-phase (50/60 Hz) and PV oversizing up to ~75 kWp (150%).
• 6 independent MPPTs with 2 strings per MPPT, 20 A per tracker (max. Isc per input 30 A) for high-current modules.
• MPPT window 500–800 V, nominal Vdc 670 V; start voltage 188 V / minimum 150 V; max. Voc 1000 V.
• Max. efficiency 98.1% (EU 97.8%), THD < 3%, sound level < 65 dB(A); active cooling OptiCool.
• Quick installation: self-supporting mounting, 12 SUNCLIX 1000 V inputs, integrated DC switch; no DC fuses.
• Professional communications: 2×Ethernet, WLAN, Webconnect, Modbus/SunSpec over Speedwire, RS485 (module), multifunction relay.

Advantages or benefits

• CAPEX/OPEX savings: self-supporting structure and quick connections reduce installation times; proactive SMA Smart Connected service (depending on region).
• Higher actual production with ShadeFix for shade and string mismatch management; Integrated Plant Control and Q-on-Demand 24/7 for active/reactive power control and zero feed-in.
• Total robustness: IP65 enclosure, operation from −25 °C to +60 °C and 100% RH (non-condensing), ideal for outdoor use without a technical room.
• Design flexibility: 6 MPPT and 12 strings allow combining different orientations and inclinations, optimizing LCOE on rooftops and ground.
• Integrated safety: DC switch, insulation monitor and RCMU; AC/DC SPD Type II (optional) and transformerless topology.

Purpose or applications

Designed for commercial and industrial three-phase self-consumption, solar carports, logistics warehouses, agrivoltaics, and ground-mounted projects with decentralized architecture. Not a hybrid inverter and does not include back-up; for storage or backup, integrate AC-coupled solutions from the SMA ecosystem.

Technical specifications

Compatibilities

Native integration with Sunny Portal (ennexOS), SMA Data Manager M, Sunny Home Manager 2.0, and SMA Energy Meter. Compatible with e-mobility via SMA EV Charger 7.4 kW and SMA EV Charger 22 kW. Official accessories: RS485 modules (MD.485-40), Sensor Module (MD.SEN-40), IO-Module (MD.IO-40), AC/DC SPD kits (AC_SPD_Kit1-10 / AC_SPD_KIT2_T1T2 / DC_SPD_Kit4-10 / DC_SPD_KIT5_T1T2), and Universal Mounting System (UMS_KIT-10).

SMA Sunny Tripower CORE1 50kW STP50-41 Three-Phase Solar Inverter provides fast installation, 6 high-precision MPPTs, and intelligent management to maximize performance and reliability in commercial and field photovoltaic projects.