Deye SUN-3K-SG04LP1
This datasheet provides complete technical specifications for the SUN-3K-SG04LP1 models: SUN-3K-SG04LP1-24-EU-SM1, SUN-3K-SG04LP1-EU-SM1, SUN-3.6K-SG04LP1-EU-SM2, SUN-5K-SG04LP1-EU-SM2, and SUN-6K-SG04LP1-EU-SM2. Key specifications include Max. Efficiency of 97.6%, IP65 protection, and a Max. PV Input Voltage of 500V. Designed for residential hybrid applications in the Iraq.
Technical Specifications
| Parameter | SUN-3K-SG04LP1-24-EU-SM1 | SUN-3K-SG04LP1-EU-SM1 | SUN-3.6K-SG04LP1-EU-SM2 | SUN-5K-SG04LP1-EU-SM2 | SUN-6K-SG04LP1-EU-SM2 |
|---|---|---|---|---|---|
| Battery Input Data | |||||
| Battery Type | Lead-acid or Lithium-ion | ||||
| Battery Voltage Range (V) | 20-30 | 40-60 | 40-60 | 40-60 | 40-60 |
| Max. Charging Current (A) | 140 | 70 | 90 | 120 | 135 |
| Max. Discharging Current (A) | 140 | 70 | 90 | 120 | 135 |
| Charging Strategy for Li-ion Battery | Self-adaption to BMS | ||||
| Number of Battery Input | 1 | ||||
| PV String Input Data | |||||
| Max. PV Access Power (W) | 6000 | 6000 | 7200 | 10000 | 12000 |
| Max. PV Input Power (W) | 4800 | 4800 | 5760 | 8000 | 9600 |
| Max. PV Input Voltage (V) | 500 | ||||
| Start-up Voltage (V) | 125 | ||||
| MPPT Voltage Range (V) | 150-425 | ||||
| Rated PV Input Voltage (V) | 370 | ||||
| Max. Operating PV Input Current (A) | 18 | 18+18 | N/A | N/A | N/A |
| Max. Input Short-Circuit Current (A) | 27 | 27+27 | N/A | N/A | N/A |
| No. of MPPT Trackers | 1/1 | 2/1+1 | N/A | N/A | N/A |
| No. of Strings MPPT Tracker | 1/1 | ||||
| AC Output Data | |||||
| Rated AC Input/Output Active Power (W) | 3000 | 3600 | 5000 | 6000 | N/A |
| Max. AC Input/Output Apparent Power (VA) | 3300 | 3960 | 5500 | 6600 | N/A |
| Rated AC Input/Output Current (A) | 13.7/13.1 | 16.4/15.7 | 22.8/21.8 | 27.3/26.1 | N/A |
| Max. AC Input/Output Current (A) | 15/14.4 | 18/17.3 | 25/24 | 30/28.7 | N/A |
| Max. Continuous AC Passthrough (grid to load) (A) | 35 | 40 | N/A | N/A | N/A |
| Peak Power (off-grid) (W) | 2 times of rated power, 10s | ||||
| Power Factor Adjustment Range | 0.8 leading to 0.8 lagging | ||||
| Rated Input/Output Voltage/Range (V) | 220/230, 0.85Un-1.1Un | ||||
| Rated Input/Output Grid Frequency/Range(Hz) | 50/45-55, 60/55-65 | ||||
| Grid Connection Form | L+N+PE | ||||
| Total Current Harmonic Distortion THDi | <3% of nominal power | ||||
| DC Injection Current | <0.5% In | ||||
| Efficiency | |||||
| Max. Efficiency | 97.6% | ||||
| Euro Efficiency | 96.5% | ||||
| MPPT Efficiency | >99% | ||||
| Protection Features | |||||
| Integrated | DC Reverse Polarity Protection, AC Output Overcurrent Protection, Thermal Protection, AC Output Overvoltage Protection, AC Output Short Circuit Protection, DC Component Monitoring, Arc Fault Circuit Interrupter (optional), Anti-Islanding Protection, DC Switch, Insulation Impedance Detection, Residual Current Detection | ||||
| Surge Protection Level | TYPE II(DC), TYPE II(AC) | ||||
| Communication | |||||
| Communication Interface | RS485/RS232/CAN | ||||
| Monitor Mode | GPRS/WIFI/Bluetooth/4G/LAN(optional) | ||||
| Operating Conditions | |||||
| Operating Temperature Range (°C) | -40 to +60°C, <45°C Derating | ||||
| Permissible Ambient Humidity | 0-100% | ||||
| Permissible Altitude | 2000m | ||||
| Noise (dB) | <30 | ||||
| Ingress Protection(IP) Rating | IP 65 | ||||
| Inverter Topology | Non-Isolated | ||||
| Over Voltage Category | OVC II(DC), OVC III(AC) | ||||
| Cabinet Size (W×H×D mm) | 376×470×241.5 (Excluding Connectors and Brackets) | ||||
| Weight (kg) | 17.6 | 19 | N/A | N/A | N/A |
| Type of Cooling | Natural Cooling | ||||
Note: Specifications are based on the official Deye SUN-18/20/21K-G04-LV datasheet. Values may be subject to change; always verify against the latest manufacturer documentation before system design and procurement.
Key Features & Technical Highlights
Dual MPPT for LV Three-Phase Systems
The SUN-18/20/21K-G04-LV series incorporates two independent MPPT trackers optimized for low-voltage three-phase grid connections. Each MPPT supports 3 strings (3+3 configuration), enabling flexible array designs across different roof orientations or partial shading scenarios.
With a wide MPPT voltage range of 200V to 700V and rated DC bus voltage of 350V, the inverter accommodates various string configurations while maintaining peak efficiency on LV 127V/220V and 133V/230V networks.
Industry-Leading Efficiency
Maximum conversion efficiency of 98.6% combined with MPPT tracking efficiency exceeding 99% minimizes energy losses throughout the system lifetime. This high efficiency directly translates to improved energy yield and faster return on investment for commercial installations.
Comprehensive Protection Suite
- DC Side: Reverse polarity protection, surge protection (Type II), integrated DC switch
- AC Side: Overcurrent, overvoltage, and short circuit protection with Type II surge protection
- System Safety: Anti-islanding, residual current detection, insulation impedance monitoring
- Thermal Management: Intelligent air cooling with automatic derating above 45°C
- Optional: Arc Fault Circuit Interrupter (AFCI) for enhanced fire safety
Smart Monitoring & Grid Support
Standard RS485/RS232 communication ports with optional GPRS, WiFi, Bluetooth, 4G, and LAN connectivity enable comprehensive remote monitoring. Zero Export and VSG (Virtual Synchronous Generator) applications provide advanced grid interaction capabilities for self-consumption optimization and grid stability support.
Applications & Use Cases
Typical Applications
- Residential with battery backup
- Self-consumption optimization
- Areas with unreliable grid
- Peak shaving applications
- Off-grid systems
Installation Notes (Iraq)
Climate Suitability: Hot desert climate in most regions. Extreme summer temperatures exceeding 50°C. Dust storms common.
Regulatory: Coordinate with MOE for grid connection requirements.
- Ensure compatibility with local grid standards
- Consider battery type and capacity for optimal performance
- Plan for potential derating above 45°C
Model Selection Guide
Selecting between the SUN-18K, SUN-20K, and SUN-21K-G04-LV depends on:
- Array Size: Match PV array DC capacity to inverter input power (DC/AC ratio typically 1.1–1.3×)
- Available LV Service Capacity: Verify main breaker and feeder ampacity can accommodate inverter output current
- Load Profile: Size to typical daytime load for maximum self-consumption in zero-export applications
- Expansion Plans: Consider future load growth when selecting inverter capacity
| Model | AC Output | Max PV Input | Typical Array Size* |
|---|---|---|---|
| SUN-18K-G04-LV | 18 kW | 23.4 kW | 19.8 – 23.4 kWp |
| SUN-20K-G04-LV | 20 kW | 26 kW | 22 – 26 kWp |
| SUN-21K-G04-LV | 21 kW | 27.3 kW | 23.1 – 27.3 kWp |
*Based on DC/AC ratio of 1.1–1.3× for optimal energy harvest in high-irradiance locations.
Frequently Asked Questions
What is the maximum efficiency of the SUN-3K-SG04LP1?
The SUN-3K-SG04LP1 achieves a maximum efficiency of 97.6%, with a Euro efficiency of 96.5% and MPPT efficiency greater than 99%.
What grid voltages does the SUN-3K-SG04LP1 support?
The SUN-3K-SG04LP1 supports a rated input/output voltage of 220/230V with a range of 0.85Un-1.1Un, and grid frequency of 50/60Hz.
How many MPPT trackers does the SUN-3K-SG04LP1 have?
The SUN-3K-SG04LP1 features 1 MPPT tracker, with the option for 2 MPPT trackers in certain models.
What is the warranty for the SUN-3K-SG04LP1?
The SUN-3K-SG04LP1 comes with a 5-year manufacturer warranty.
Is the SUN-3K-SG04LP1 suitable for outdoor installation?
Yes, the SUN-3K-SG04LP1 is suitable for outdoor installation with an IP65 protection rating.
What protection features does the SUN-3K-SG04LP1 include?
The SUN-3K-SG04LP1 includes DC reverse polarity protection, AC output overcurrent protection, thermal protection, and more.
Can the SUN-3K-SG04LP1 be used in Iraq?
Yes, the SUN-3K-SG04LP1 can be used in Iraq, as it complies with relevant international standards.
What monitoring options are available for the SUN-3K-SG04LP1?
The SUN-3K-SG04LP1 offers monitoring options via GPRS, WIFI, Bluetooth, 4G, and LAN (optional).