SUN-7.5/8K-G

The Deye SUN-7.5/8K-G is a single-phase string inverter designed for residential and commercial solar PV systems. With 2 MPP trackers, a maximum efficiency of up to 97.7%, and a wide output voltage range, it delivers reliable and optimized energy generation. It supports zero export and VSG applications, comes with comprehensive protection features, and offers optional Anti-PID function and string intelligent monitoring.

SUN-7.5/8K-G

Key Features

  • High Efficiency: Achieves a maximum efficiency of up to 97.7% with 2 MPP trackers.
  • Low Start-up Voltage: Starts up at a low voltage of 80V, enabling optimal performance even in low-light conditions.
  • Zero Export Application: Supports zero export functionality, allowing you to manage your energy consumption and maximize self-consumption.
  • VSG Application: Enables voltage support capabilities, contributing to grid stability.
  • String Intelligent Monitoring: Offers optional string intelligent monitoring for enhanced system diagnostics.
  • Wide Output Voltage Range: Supports an AC grid voltage range of 180-300 Vac, providing flexible compatibility with various grid configurations.
  • Anti-PID Function: Optional anti-PID function helps prevent power degradation caused by the PID phenomenon in PV modules.
  • Comprehensive Protection: Includes DC reverse-polarity protection, AC short circuit protection, AC output overcurrent/overvoltage protection, insulation resistance protection, ground fault monitoring, anti-islanding protection, temperature protection, and DC Type II / AC Type II surge protection.
  • Monitoring & Communication: Supports RS485/RS232/WiFi/LAN interfaces for remote monitoring and communication.

General Data

  • Inverter Topology: Transformerless
  • Cabinet Size: 330 × 310 × 198.5 mm (W × H × D)
  • Weight: 11 kg
  • Cooling Type: Natural Cooling
  • Warranty: 5 Years

Standards & Certifications

  • Grid Regulation: ABNT NBR 16149, ABNT NBR 16150, ABNT NBR IEC 62116, RD1699, UNE 206006 IN, UNE 206007-1 IN, UNE 217001 IN
  • EMC/Safety: IEC 62109-1/-2, IEC 61000-6-1, IEC 61000-6-3, IEC 61000-3-11, IEC 61000-3-12
  • Ingress Protection Rating: IP 65

Technical Specifications

Model SUN-7.5K-G SUN-8K-G
PV String Input Data
Max. DC Input Power (kW) 9.8 10.4
Max. DC Input Voltage (V) 550
Start-up DC Input Voltage (V) 80
MPPT Operating Range (V) 70~550
Max. DC Input Current (A) 13+26
Max. Short Circuit Current (A) 19.5+39
No. of MPPT Trackers / No. of Strings per MPPT Tracker 2 / 1+2
AC Output Side
Rated Output Power (kW) 7.5 8
Max. Active Power (kW) 8.3 8.8
Rated AC Grid Output Current (A) 32.6 34.8
Max. AC Output Current (A) 35.9 38.3
Rated AC Grid Voltage (V) 220 / 230 (Optional)
AC Grid Voltage Range (V) 180Vac~300Vac (This may vary with grid standards)
Operating Phase Single phase
Rated Grid Frequency (Hz) 50 / 60 (Optional)
Grid Frequency Range (Hz) 47~52 or 57~62 (Optional)
Output Power Factor 0.8 leading to 0.8 lagging
Grid Current THD <3%
DC Injection Current (mA) <0.5%
Efficiency
Max. Efficiency 97.7%
Euro Efficiency 97.5%
MPPT Efficiency >99%
Equipment Protection
DC Reverse-Polarity Protection Yes
AC Short Circuit Protection Yes
AC Output Overcurrent Protection Yes
Output Overvoltage Protection Yes
Insulation Resistance Protection Yes
Ground Fault Monitoring Yes
Anti-islanding Protection Yes
Temperature Protection Yes
Integrated DC Switch Yes
Remote Software Upload Yes
Remote Change of Operating Parameters Yes
Surge Protection DC Type II / AC Type II
Interface
Communication Interface RS485/RS232
Monitor Mode WiFi/LAN
Display LCD1602
DC Connection MC-4 mateable
AC Connection IP65 rated plug
General Data
Operating Temperature Range (°C) -25 to +65°C
Permissible Ambient Humidity 0–100%
Max. Operating Altitude Without Derating (m) 2000m
Noise (dB) <25 dB
Internal Consumption <1W (Night)
Ingress Protection (IP Rating) IP65
Inverter Topology Transformerless
Cabinet Size (WxHxD mm) 330×310×198.5
Weight (kg) 11
Designed Lifetime >20 years
Warranty 5 Years
Type of Cooling Natural Cooling
Grid Regulation ABNT NBR 16149, ABNT NBR 16150, ABNT NBR IEC 62116, RD1699, UNE 206006 IN, UNE 206007-1 IN, UNE 217001 IN
Safety EMC/Standard IEC 62109-1/-2, IEC 61000-6-1, IEC 61000-6-3, IEC 61000-3-11, IEC 61000-3-12