Deye AI-W5.1-B combinations
This datasheet provides complete technical specifications for the AI-W5.1-B combinations, including models AI-W5.1-1-B, AI-W10.2-B, AI-W15.3-B, AI-W20.4-B, AI-W25.6-B, and AI-W30.7-B. Key specifications include LiFePO₄ chemistry, IP65 rating, and a modular design supporting up to 6 clusters in parallel. Designed for residential solar self-consumption in the United Arab Emirates region.
Technical Specifications
| Parameter | AI-W5.1-1-B | AI-W10.2-B | AI-W15.3-B | AI-W20.4-B | AI-W25.6-B | AI-W30.7-B |
|---|---|---|---|---|---|---|
| Battery Module | ||||||
| Battery Model Number | AI-W5.1-1-B | AI-W10.2-B | AI-W15.3-B | AI-W20.4-B | AI-W25.6-B | AI-W30.7-B |
| Number of battery units in parallel (Optional) | 1 | 2 | 3 | 4 | 5 | 6 |
| Battery Chemistry | LiFePO₄ | |||||
| Built-in Circuit Breaker | 125A 2P, 60Vdc | |||||
| Battery Module Energy (kWh) | 5.12 | |||||
| Battery Module Voltage (V) | 51.2 | |||||
| Battery Module Capacity (Ah) | 100 | |||||
| Nominal Voltage (V) | 51.2 | |||||
| Operating Voltage (V) | 44.8 ~ 57.6 | |||||
| Nominal Energy (kWh) | 5.12 | 10.24 | 15.36 | 20.48 | 25.6 | 30.72 |
| Usable Energy (kWh) | 4.6 | 9.2 | 13.8 | 18.4 | 23 | 27.6 |
| Rated DC Power (kW) | 2.5 | 5 | 7.5 | 10 | 12 | 12 |
| Charge / Discharge Current (A) | 50 | 100 | 150 | 200 | 250 | 250 |
| Peak (10s, 25°C) | 150 | 270 | 360 | 360 | 360 | 360 |
| Mechanical Data | ||||||
| System Dimension (W × D × H, mm) | 720×255×569 | 720×255×850 | 720×255×1131 | 720×255×1412 | 720×255×1693 | 720×255×1974 |
| System Weight (kg) | 74.5 | 127.5 | 180.5 | 233.5 | 286.5 | 339.5 |
| Battery Module Dimension (W × D × H, mm) | 720±3×254±1.5×300±1.5 | |||||
| Battery Module Weight (kg) | 55 | |||||
| Operating Conditions | ||||||
| Operating Temperature | Charge: -20°C ~ 55°C / Discharge: -20°C ~ 55°C | |||||
| Storage Temperature | 0°C ~ 35°C | |||||
| Humidity | 5% ~ 95%, non-condensing | |||||
| Altitude | ≤3000m | |||||
| Protection Features | ||||||
| IP Rating of Enclosure | IP65 (after stacking) | |||||
| Communication | ||||||
| Communication Port | CAN2.0, RS485 | |||||
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 solar self-consumption
- Backup power
- Time-of-use optimization
- Off-grid systems
- Peak shaving applications
Installation Notes (United Arab Emirates)
Climate Suitability: Hot desert climate with temperatures reaching 50°C in summer. High humidity in coastal areas (up to 100% RH). Frequent sandstorms and dust.
Regulatory: Coordinate with DEWA, ADDC, ESMA for grid connection requirements.
- Ensure proper ventilation for natural cooling.
- Consider modular expansion for future energy needs.
- Verify compatibility with local grid regulations.
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 cycle life of the AI-W5.1-B combinations?
The AI-W5.1-B combinations have a cycle life of ≥6000 cycles, ensuring long-term reliability and performance for residential high-voltage battery applications.
What battery chemistry does the AI-W5.1-B combinations use?
The AI-W5.1-B combinations use LiFePO₄ (Lithium Iron Phosphate) battery chemistry, known for its safety and stability.
How many batteries can be connected in parallel for the AI-W5.1-B combinations?
Up to 6 battery units can be connected in parallel for the AI-W5.1-B combinations, allowing for a maximum capacity of 184kWh.
What is the warranty for the AI-W5.1-B combinations?
The AI-W5.1-B combinations come with a 10-year manufacturer warranty, providing assurance of quality and durability.
Is the AI-W5.1-B combinations suitable for outdoor installation?
Yes, the AI-W5.1-B combinations are suitable for outdoor installation with an IP65 rating, ensuring protection against dust and water.
What protection features does the AI-W5.1-B combinations include?
The AI-W5.1-B combinations include an IP65 enclosure rating and a built-in circuit breaker of 125A 2P, 60Vdc for enhanced safety.
Can the AI-W5.1-B combinations be used in United Arab Emirates?
Yes, the AI-W5.1-B combinations can be used in United Arab Emirates, meeting international certifications like CE and IEC62619.
What monitoring options are available for the AI-W5.1-B combinations?
The AI-W5.1-B combinations offer communication ports including CAN2.0 and RS485 for monitoring and integration with energy management systems.