SUNGROW Inverter On-Grid SG20RT-P2 1000Vdc 20kW 2MPPT

The Sungrow SG20RT-P2 is a high-efficiency, three-phase on-grid solar inverter engineered for commercial, industrial, and large residential PV systems. Designed under Sungrow’s P2 platform, this inverter combines advanced power electronics, intelligent protection features, and digital communication interfaces for maximum energy yield and system reliability.

With a nominal AC output power of 20 kW, the SG20RT-P2 supports up to 32 A DC input per MPPT channel and operates at a maximum PV voltage of 1100 VDC, enabling flexible string design and optimal energy harvest under diverse solar conditions. The inverter incorporates 16 independent Maximum Power Point Trackers (MPPTs), providing exceptional performance in systems with partial shading, multiple orientations, or complex rooftop configurations.

Electrical Characteristics

• DC Input Voltage Range: 200 – 1000 VDC (Nominal 600 VDC)
• Max PV Voltage: 1100 VDC
• Max PV Current: 32 A per MPPT
• Number of MPPTs: 16
• Rated AC Output Power: 20,000 W
• AC Output Voltage: 3 / N / PE, 230 / 400 VAC
• Nominal AC Current: 29 A
• Frequency Range: 45 – 65 Hz (Nominal 50/60 Hz)
• Power Factor: 0.8 leading to 0.8 lagging
• Total Harmonic Distortion (THD): < 3 %
• Max Efficiency: 98.6 % (European Efficiency: 98.2 %)

Protection and Reliability

Built with industry-leading safety features, the SG20RT-P2 ensures safe and continuous operation even under challenging conditions.

• DC Reverse Polarity Protection
• Integrated Type II DC & AC Surge Protection (SPD)
• Arc Fault Circuit Interruption (AFCI) for enhanced fire prevention
• Ground Fault Monitoring and Residual Current Protection
• Integrated DC Switch for rapid disconnection
• Anti-islanding protection in accordance with EN 50549-1 and IEC 62116

The inverter enclosure is rated IP65, offering superior resistance to dust, humidity, and rain, enabling both indoor and outdoor installation. It features natural convection cooling, minimizing noise levels (<35 dB) and eliminating fan maintenance, ensuring long-term reliability.

Communication and Monitoring

Equipped with a wide range of digital interfaces, the SG20RT-P2 integrates seamlessly into modern energy management systems.

• Communication Ports: RS485, Ethernet, Wi-Fi (optional dongle)
• Monitoring Platform: iSolarCloud (Web and App-based)
• Compatibility: Works with Sungrow COM100D-EU communication box, DTSU666-80A smart meter, and EMS iHomeManager for full system monitoring, energy flow visualization, and remote firmware updates.
• Supported Protocols: Modbus RTU / Modbus TCP

Mechanical Data

• Dimensions (W × H × D): 500 × 390 × 210 mm
• Weight: 22.0 kg
• Mounting Method: Wall-mounted (bracket included)
• Cooling Method: Natural convection
• Color: White (powder-coated aluminum housing)

Environmental Parameters

• Operating Temperature Range: −25 °C to +60 °C
• Storage Temperature Range: −40 °C to +70 °C
• Relative Humidity: 0 – 100 % (non-condensing)
• Maximum Altitude: 4000 m (derating above 2000 m)
• Environmental Protection: IP65-certified, UV- and corrosion-resistant housing

Certifications and Standards

• CE, EN 50549-1, IEC 62109-1/2, IEC 62116, VDE-AR-N 4105, IEC 61727, IEC 61683, IEC 60068
• Grid compliance tested for European markets (Germany, Italy, Poland, Baltics, etc.)

Warranty and Service

• Standard Warranty: 5 years (extendable up to 10 or 15 years upon request)
• Manufacturer Support: Sungrow Europe – Technical Hotline and iSolarCloud Remote Diagnostic Access
• Lifecycle Expectancy: > 20 years under normal operation