Product Overview
The Deye SUN-6K-SG04LP1-EU is a 6 kW single-phase hybrid inverter designed for grid-connected, backup and off-grid solar installations. It combines solar, battery, grid and compatible generator inputs, making it suitable for homes and small businesses requiring flexible energy management and backup power.
Key Features
- Provides 6 000 W of rated single-phase AC input and output power.
- Supports lead-acid and lithium-ion batteries operating within a 40–60 V battery voltage range.
- Delivers up to 135 A battery charging and discharging current.
- Supports up to 12 000 W of PV access power, with a maximum PV input power of 9 600 W.
- Features two MPPT trackers with a 150–425 V MPPT operating range.
- Provides six configurable time periods for scheduled battery charging and discharging.
- Supports AC coupling for retrofitting compatible existing solar installations.
- Supports parallel operation of up to 16 compatible inverter units for on-grid and off-grid systems.
- Offers up to twice the rated output power for 10 seconds during off-grid operation.
- Includes a colour touch LCD for system monitoring and configuration.
- Provides WiFi, RS485 and CAN communication interfaces.
- Features an IP65-rated enclosure and intelligent air cooling.
Applications
- Residential solar and battery storage installations.
- Backup power systems for homes and small businesses.
- Grid-connected and off-grid solar installations.
- Retrofitting compatible existing solar systems through AC coupling.
- Solar systems incorporating a suitably configured diesel generator.
Why Choose This Product?
The Deye SUN-6K-SG04LP1-EU combines a 6 kW single-phase output with dual MPPT tracking, low-voltage battery support and flexible energy-management options. Its AC-coupling, generator-support and parallel-operation capabilities make it suitable for new installations as well as selected system expansions and retrofits.
Important Notes
- Battery compatibility, BMS communication and charging settings must be confirmed before installation.
- PV array voltage and current must remain within the inverter’s specified operating limits.
- Parallel operation and generator integration require compatible equipment and correct system configuration.
- The Arc Fault Circuit Interrupter (AFCI) is listed as an optional feature and should not be assumed to be included.
- The applicable 5-year or 10-year warranty depends on the final installation site and Deye’s warranty policy.
- Installation and commissioning must be completed by a suitably qualified electrician or solar installer in accordance with applicable South African requirements.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | Deye |
| Model | SUN-6K-SG04LP1-EU |
| Product Type | Single-phase hybrid inverter |
| Rated AC Input/Output Active Power | 6 000 W |
| Maximum AC Input/Output Apparent Power | 6 600 VA |
| Rated AC Input/Output Current | 27.3 A / 26.1 A |
| Maximum AC Input/Output Current | 30 A / 28.7 A |
| Maximum Continuous AC Passthrough | 40 A |
| Off-grid Peak Power | 2 × rated power for 10 seconds |
| Rated Input/Output Voltage | 220/230 V, 0.85 Un–1.1 Un, L+N+PE |
| Grid Frequency and Range | 50 Hz: 45–55 Hz; 60 Hz: 55–65 Hz |
| Power Factor Adjustment Range | 0.8 leading to 0.8 lagging |
| Battery Type | Lead-acid or lithium-ion |
| Battery Voltage Range | 40–60 V |
| Maximum Charging/Discharging Current | 135 A |
| Number of Battery Inputs | 1 |
| Lithium-ion Charging Strategy | Self-adaption to BMS |
| Maximum PV Access Power | 12 000 W |
| Maximum PV Input Power | 9 600 W |
| Maximum PV Input Voltage | 500 V |
| PV Start-up Voltage | 125 V |
| MPPT Voltage Range | 150–425 V |
| Rated PV Input Voltage | 370 V |
| Maximum PV Operating Input Current | 18 A + 18 A |
| Maximum PV Short-circuit Current | 27 A + 27 A |
| MPPT Trackers / Strings per Tracker | 2 / 1+1 |
| Maximum Efficiency | 97.6% |
| Euro Efficiency | 96.5% |
| MPPT Efficiency | >99% |
| Display | Colour touch LCD |
| Communication Interfaces | WiFi, RS485 and CAN |
| Ingress Protection Rating | IP65 |
| Surge Protection Level | Type II (DC) and Type II (AC) |
| Cooling | Intelligent air cooling |
| Operating Temperature | -40°C to +60°C, with derating above 45°C |
| Maximum Permissible Altitude | 2 000 m |
| Noise Level | <30 dB |
| Dimensions | 330 × 433 × 228 mm, excluding connectors and brackets |
| Weight | 17 kg |
| Warranty | 5 years / 10 years, dependent on the final installation site and Deye warranty policy |
Important:
All solar products, power systems, water heating and gas products and their components must be installed by appropriately qualified personnel. All installations must adhere to local wiring regulations and standards. Sustainable Online will not be held liable for any product malfunctions as a result of incorrectly installed systems.

