SMA Solar PV-Wechs.richter 125kVA 3-phas. PV-WR mit 12 STP125-70

Large-scale solar installations demand an inverter that can handle high DC input while delivering reliable three-phase AC power to the grid. The SMA Solar PV Inverter 125kVA 3-Phase with 12 MPPT Trackers STP125-70 answers that call, converting up to 187.5 kW of DC power into 125 kVA of grid-compliant AC. With 12 independent MPPT trackers and 24 DC inputs, it maximizes energy harvest even in partially shaded or multi-orientation arrays. Its transformerless design and OptiCool active cooling push efficiency to 98.6%, ensuring every watt counts.

Who is it for

This inverter is built for commercial and utility-scale PV projects where performance, durability, and flexibility are non-negotiable. EPCs, solar farm operators, and large rooftop installers will appreciate its robust IP66 enclosure, wide temperature tolerance, and integrated DC disconnect for safe maintenance.

Main features

• 12 MPPT trackers with 2 DC inputs each (24 total) for optimal energy capture
• Max DC input voltage 1100 V, MPPT range 500–800 V
• Transformerless topology with 98.6% max efficiency
• Integrated DC disconnector and Type II surge protection on AC and DC sides
• IP66-rated enclosure for outdoor installation in harsh environments
• Active OptiCool cooling for reliable operation from -30°C to +60°C
• Communication via Ethernet, WLAN, and optional RS485

Specifications

• Max AC power: 125,000 W / 125 kVA
• Max DC power: 187,500 W
• Nominal AC voltage: 3 / N / PE, 230 V / 400 V
• AC grid frequency: 50 Hz / 60 Hz
• Max input current per MPPT: 24 A
• European efficiency: 98.4%
• Operating temperature: -30 °C to +60 °C
• Protection class: IP66

Tips

Pair this inverter with high-voltage PV modules to stay within the 500–800 V MPPT range for peak efficiency. Use the Ethernet or WLAN interface for remote monitoring and firmware updates. Ensure adequate clearance around the unit for airflow, and consider optional RS485 for legacy SCADA integration.