Description
Deye SUN-20K-SG05LP3-AU-SM2
20kW Three-Phase Low-Voltage Hybrid Inverter
The Deye SUN-20K-SG05LP3-AU-SM2 is a premium 20kW three-phase hybrid inverter purpose-built for the Australian market. This advanced low-voltage (48V) unit seamlessly integrates solar PV inversion, high-capacity battery storage management, and intelligent grid interaction in a single compact, high-efficiency platform.
Whether you’re powering a large family home, a small-to-medium business, or upgrading an existing solar system, this inverter delivers maximum self-consumption, reliable backup power, and future-proof scalability — all while meeting strict Australian grid standards (AS/NZS 4777.2).
Key Highlights
- Exceptional Battery Performance — Supports up to 350A maximum charging/discharging current with two battery inputs and self-adaptation to BMS for seamless lithium or lead-acid compatibility.
- Powerful Solar Input — Dual MPPT trackers (2/2+2 strings), 32kW rated PV input power (up to 40kW PV access power), and wide MPPT range for superior energy harvest even in variable Australian sunlight conditions.
- True Three-Phase Flexibility — 100% unbalanced output (up to 50% of rated power per phase), AC coupling for easy retrofit of existing solar systems, and generator input for diesel backup integration.
- Scalable & Smart — Parallel up to 10 units for on-grid or off-grid operation; supports multiple batteries in parallel and 6 programmable time periods for battery charging/discharging and smart load control.
- Safe & Reliable — 48V low-voltage battery with transformer isolation design, comprehensive protection suite, IP65 rating, and 10-year warranty.
- High Efficiency — Maximum efficiency of 97.6%, Euro efficiency 97.0%, and MPPT efficiency >99%.
Technical Specifications (SUN-20K-SG05LP3-AU-SM2)
| Category | Specification |
|---|---|
| Battery Input | |
| Battery Type | Lead-acid or Lithium-ion |
| Battery Voltage Range | 48 V (40–60 V) |
| Max. Charging/Discharging Current | 350 A |
| Charging Strategy | Self-adaptation to BMS |
| Number of Battery Inputs | 2 |
| PV String Input | |
| Max. PV Access Power | 40,000 W |
| Max. PV Input Power | 32,000 W |
| Max. PV Input Voltage | 800 V |
| Start-up Voltage | 160 V |
| MPPT Voltage Range | 160–650 V |
| Max. Operating PV Input Current | 36 A + 36 A |
| Max. Input Short-Circuit Current | 54 A + 54 A |
| No. of MPP Trackers / Strings | 2 / 2+2 |
| AC Input / Output (Grid) | |
| Rated AC Output Active Power | 20,000 W |
| Rated AC Output Current | 29 A |
| Max. Continuous AC Passthrough | 70 A |
| Rated Voltage | 230/400 V or 240/415 V (3L+N+PE) |
| Grid Frequency Range | 50 Hz (45–55 Hz) |
| Off-Grid / Backup | |
| Peak Power (off-grid) | 2 × rated power for 10 seconds |
| Efficiency | |
| Maximum Efficiency | 97.6% |
| Euro Efficiency | 97.0% |
| MPPT Efficiency | >99% |
| General Data | |
| Operating Temperature Range | -40°C to +60°C (>45°C derating) |
| Ingress Protection | IP65 |
| Noise Level | <60 dB |
| Dimensions (W×H×D) | 456 × 750 × 268.5 mm (excluding connectors & brackets) |
| Weight | 51.9 kg |
| Cooling | Intelligent Air Cooling |
| Warranty | 10 Years |
| Grid Regulation | AS/NZS 4777.2 |
Advanced Features & Protections
- Comprehensive safety protections: DC reverse polarity, AC overcurrent/overvoltage/short-circuit, thermal, anti-islanding (active frequency shift), insulation impedance detection, residual current detection, optional AFCI
- Zero-export / limited export function
- 6 programmable time periods for smart energy management
- Generator port for storing energy from diesel generators
- AC coupling capability to retrofit and expand existing solar systems
- LCD + LED display with RS485, CAN, and RS232 communication ports
- Indoor or outdoor installation (IP65 rating)
Ideal For
Larger residential properties, small commercial installations, and off-grid or hybrid setups across Australia that demand high power output, rapid battery response, full three-phase load balancing, and long-term reliability. Its compact size, high efficiency, and intelligent features help maximise solar self-consumption, reduce electricity bills, and provide seamless UPS-style backup during outages.
The Deye SUN-20K-SG05LP3-AU-SM2 delivers industry-leading performance, Australian-compliant safety, and unmatched flexibility — the perfect choice for modern energy independence.
