SMA Solar Smart Energy STP8.0-3SE-40 8kW Three-Phase Inverter

The SMA Solar Smart Energy STP8.0-3SE-40 is a high-performance three-phase inverter designed for residential and commercial solar installations. With a nominal AC power of 8 kW and integrated battery connection, it offers advanced energy management and maximum efficiency. This transformerless inverter features two MPPT trackers, an integrated DC disconnector, and comprehensive communication interfaces including WLAN, Ethernet, and Modbus. Its IP65 protection class ensures reliable outdoor operation.

Advantages

High efficiency of up to 98.2% and European efficiency of 97.5% ensure maximum energy yield. The integrated battery connection allows for easy addition of high-voltage battery storage, enabling self-consumption optimization and backup power. The SMA Smart Connected service provides proactive monitoring and remote diagnostics.

Suitable for

• Residential and commercial solar systems up to 8 kWp
• Three-phase grid connections
• Systems requiring battery storage integration
• Outdoor installations (IP65)

Key specifications

• AC Nominal Power: 8000 W
• Number of MPPT Trackers: 2
• Max DC Input Voltage: 1000 V
• MPPT Voltage Range: 150 V - 800 V
• Max Input Current per MPPT: 12.5 A
• Nominal AC Voltage: 3/N/PE, 230/400 V
• AC Grid Frequency: 50/60 Hz
• Max Efficiency: 98.2%
• European Efficiency: 97.5%
• Integrated Battery Connection: Yes (high-voltage)
• Battery Charging/Discharging Power: 8000 W
• Topology: Transformerless
• Protection Class: IP65
• Operating Temperature Range: -25 °C to +60 °C
• Communication Interfaces: WLAN, Ethernet, Speedwire/Webconnect, Modbus (SMA, SunSpec)
• Phases: 3-phase
• DC Disconnector: Integrated
• Integrated Energy Management: Yes (SMA Smart Connected, OptiTrack Global Peak)

Recommendations

For optimal performance, pair this inverter with SMA's high-voltage battery systems and use the SMA Energy app for monitoring. Ensure proper ventilation and mounting according to the installation manual.