Deye SUN-5K-SG04LP1-AU Hybrid Inverter

1.Solar, Battery and Grid in One Unit

Because it’s a hybrid inverter, this unit manages your solar panels, battery bank, and grid connection

In simple terms:

1. During the day, your solar runs your household or business loads first.
   
   
2. Extra solar energy charges the battery.
   
   
3. When the sun goes down, the battery can supply power before you draw from the grid.

That means less energy bought from the grid and better use of the solar you generate.

2. Flexible 48 V Battery Options

The inverter is designed for 48 V batteries, with a battery voltage range of 40–60 V and support for both lead-acid and lithium-ion chemistries.

What this means in practice:

• You can start with a smaller 48 V battery bank and expand it later (within the battery manufacturer’s limits).
  
  
• You can choose from a range of compatible low-voltage battery brands commonly used in Australia.
  
  
• Low-voltage storage is well-suited to residential installs and small commercial sites.
  
  

3. Dual MPPTs for Real-World Roofs

On the solar side, the SUN-5K-SG04LP1-AU provides:

• 2 independent MPPT trackers
  
  
• Max PV input power: 7,500 W
  
  
• Max PV access power (oversizing): 10,000 W
  
  
• MPPT voltage range: 150–425 V
  
  
• Max operating PV input current: 13 A + 13 A
  
  
• Max PV short-circuit current: 17 A + 17 A
  
  

This allows you to:

• Split panels across two roof directions (e.g. east/west or north/west).
  
  
• Handle partial shading better by separating strings.
  
  
• Slightly oversize the array to maximise generation during real-world conditions.
  
  

4. Smart Time-Based Control

The inverter lets you set up to six different time periods for battery charging and discharging.

This is especially handy if you:

• Are on a time-of-use tariff with peak and off-peak rates.
  
  
• Want the battery to charge when solar is plentiful and discharge during expensive grid periods.
  
  

Your system designer at BSC Renewables can set this up to match your tariff and usage pattern.

5. Scalable for Larger Systems

If your energy needs grow, this series supports up to 16 inverters in parallel, both for on-grid and off-grid operation.

This makes it possible to:

• Start with one 5 kW unit for a standard home.
  
  
• Add more inverters over time for bigger homes, duplexes, small businesses or light commercial loads.
  
  
• Keep a consistent platform, monitoring and spare parts across multiple systems.
  
  

6. Built for Australian Conditions

The SUN-5K-SG04LP1-AU is designed to handle harsh outdoor environments:

• Operating temperature: –40°C to +60°C (with power derating above 45°C)
  
  
• Protection rating: IP65, suitable for outdoor wall mounting
  
  
• Noise level: <30 dB – very quiet in day-to-day operation
  
  

It is tested to AS/NZS 4777.2 for grid-connected operation and relevant IEC safety and EMC standards, so it’s suitable for compliant installations in Australia when installed by a licensed solar electrician.

7. Monitoring and Smart Connectivity

For monitoring and control, the inverter includes, front-mounted LCD display and status LEDs, WiFi connectivity, RS485 and CAN communication ports.

With the right setup, you can:

• Check solar production, battery status and energy flows in real time.
  
  
• Review your daily, weekly and monthly performance.
  
  
• Allow BSC Renewables to assist with remote diagnostics and support where appropriate.
  
  

8. Safety and Protection

The SUN-5K-SG04LP1-AU includes multiple built-in protections, such as:

• DC reverse polarity protection
  
  
• AC over-current and over-voltage protection
  
  
• AC output short-circuit protection
  
  
• Insulation monitoring and residual-current detection
  
  
• Surge protection on AC and DC sides
  
  
• DC switch for safe isolation
  
  
• Anti-islanding protection for safe grid operation
  
  

These features help protect your system, your property and the grid, and support a safe, compliant installation when installed correctly.