SUN-18/20/21K-G04-LV

Key Features

• High Efficiency: With a maximum efficiency of 98.6%, it maximizes energy harvesting from your solar panels.
• Two MPP Trackers: The two independent Maximum Power Point Tracking (MPPT) trackers ensure optimal energy production from different PV string configurations.
• Wide Output Voltage Range: Operates with a wide output voltage range of 127V/220V and 133V/230V, accommodating various grid configurations.
• Anti-PID Function (Optional): Reduces power degradation caused by Potential Induced Degradation (PID).
• Zero Export Application: Allows for self-consumption of solar energy, reducing reliance on the grid.
• VSG Application: Provides grid support by acting as a Virtual Synchronous Generator (VSG).
• String Intelligent Monitoring (Optional): Provides detailed monitoring of each string for optimal system performance.
• Comprehensive Protection Features: Includes DC polarity reverse connection protection, AC output overcurrent/overvoltage protection, short circuit protection, thermal protection, and more.
• Monitoring and Communication: Offers various communication options like GPRS, WIFI, Bluetooth, 4G, and LAN (optional) for remote monitoring and control.

Technical Specifications

• Model: SUN-18K-G04-LV, SUN-20K-G04-LV, SUN-21K-G04-LV
• Max. PV Input Power (kW): 18, 20, 21
• Max. PV Input Voltage (V): 800
• Start-up Voltage (V): 250
• MPPT Voltage Range (V): 200-700
• Rated PV Input Voltage (V): 350
• Max. Operating PV Input Current (A): 40+40
• Max. Input Short Circuit Current (A): 60+60
• Rated AC Output Active Power (kW): 18, 20, 21
• Max. AC Output Apparent Power (kVA): 18, 20, 21
• Rated AC Output Current (A): 47.3/45.2, 52.5/50.2, 55.2/52.7
• Max. AC Output Current (A): 47.3/45.2, 52.5/50.2, 55.2/52.7
• Rated Output Voltage/Range (V): 127V/220V, 133V/230V 0.85UN-1.1UN
• Total Current Harmonic Distortion THDi: <3%
• Rated Output Grid Frequency/Range(Hz): 0.8 leading to 0.8 lagging
• Max. Efficiency: 98.6%
• MPPT Efficiency: >99%
• Operating Temperature Range (°C): -25 to +65 ℃ >45℃ Derating
• Permissible Ambient Humidity: 0-100%
• Permissible Altitude (m): 2000m
• Ingress Protection(IP) Rating: IP 65
• Cabinet Size (WxHxD mm): 362×577×215
• Weight (kg): 23
• Warranty: 5 Years

The Deye SUN-18/20/21K-G04-LV is a high-performance, reliable, and versatile three-phase string inverter suitable for various residential and commercial solar installations. Its advanced features, high efficiency, and comprehensive protection features make it an ideal choice for maximizing solar energy production and minimizing reliance on the grid.