Deye SUN-6K-SG04LP3-EU
| Inverter Type | Hybrid |
| MPPT | 2 |
| Inverter Power | 6 kW |
| Number of phases | 3 |
| Inverter Type | Hybrid |
| MPPT | 2 |
| Inverter Power | 6 kW |
| Number of phases | 3 |
Description
100% unbalanced output, each phase; Max. output up to 50% rated power AC couple to retrofifit existing solar system Max. 10 pcs parallel for on-grid and off-grid operation; Support multiple batteries parallel Max. charging/discharging current of 240A Support storing energy from diesel generator 48V low voltage battery, transformer isolation design 6 time periods for battery charging/discharging
Product details
| Series Name | SUN-5/6/8/10/12K-SG04LP3-EU |
| Series AC Power Range (kW) | 5-12 |
| Model Name | SUN-6K-SG04LP3-EU |
| Product Warranty (Years) | 5 (10 Optional) |
| Maximum DC Power (kW) | 7.8 |
| Max. DC Voltage (V) | 800 |
| Max. DC Current (A) | 34 |
| Strings per single MPPT | 1 |
| DC Inputs | 2 |
| Maximum AC Power (kW) | 6.6 |
| Nominal AC Voltage (V) | 220/380, 230/400 |
| Maximum AC Current (A) | 10/9.6 |
| Nominal AC Current (A) | 9.1/8.7 |
| Frequency Range (Hz) | 45-55/55-65 |
| Frequency (Hz) | 50 / 60 |
| Power Factor | 0.8 leading - 0.8 lagging |
| Maximum Efficiency (%) | 97.6 |
| Euro Efficiency (%) | 97 |
| Operating Temperature Range (°C) | -40-60, >45 Derating |
| Protection Class | IP65 |
| Protection Features | Integrated Anti-islanding Protection, PV String Input Reverse Polarity Protection, Insulation Resistor Detection, Residual Current Monitoring Unit, Output Over Current Protection, Output Shorted Protection Surge Protection DC Type III / AC Type III Over Voltage Category DC Type II/AC Type III |
Measurements
| Height (mm) | 702 |
| Width (mm) | 422 |
| Depth (mm) | 281 |
| Weight (kg) | 33.6 |
Three-Phase Hybrid Inverter SUN-6K-SG04LP3-EU by Deye
The SUN-6K-SG04LP3-EU is a 6 kW three‑phase hybrid inverter designed for PV systems with battery storage. It supports AC coupling to retrofit existing solar setups, allows parallel operation of up to 10 units, and enables multi-battery configurations for flexible on‑grid and off‑grid energy management. The unit features a 48 V battery interface with transformer isolation, six charging/discharging periods, and the ability to store energy from a diesel generator for enhanced reliability.
Applications and use cases
This inverter is crafted for residential and commercial PV installations seeking seamless storage integration and retrofitting capabilities. Its three‑phase design makes it ideal for balanced and unbalanced load profiles, while AC coupling enables upgrading older systems without replacing the entire array. The SUN‑6K supports scalable storage with up to 10 units in parallel and parallel battery banks to expand capacity over time, and it accommodates energy recovery from diesel generators to keep critical loads powered during outages.
- AC coupling to retrofit existing solar systems
- Three‑phase output suitable for commercial and large residential loads
- Scalable architecture with up to 10 units in parallel
- Parallel connection of multiple batteries for larger storage
- Diesel generator energy integration for extended backup
- 48 V battery interface with transformer isolation for safety
- Six configurable battery charging/discharging periods
- Rugged enclosure suitable for outdoor installation (IP65)
Key electrical and performance parameters
The SUN‑6K‑SG04LP3‑EU combines high efficiency with robust three‑phase performance. It delivers a maximum DC input of up to 7.8 kW and an AC output rating of 6.6 kW (6 kW inverter power), with two MPPT channels and two DC inputs. The system tolerates very wide operating conditions and uses a 48 V battery interface with transformer isolation to maximize safety and reliability. It supports nominal AC voltages of 220/380 V and 230/400 V, covers 50/60 Hz operation, and offers a power factor of 0.8 leading to 0.8 lagging, achieving maximum efficiency up to 97.6% (Euro efficiency around 97%). Dimensions and weight are 702 mm in height, 422 mm in width, 281 mm in depth, and 33.6 kg, with IP65 protection for rugged environments.
- Maximum DC power: up to 7.8 kW; Maximum AC power: 6.6 kW; Inverter power: 6 kW
- MPPT: 2; DC inputs: 2; Maximum DC input voltage: 800 V; Maximum DC current per input: 34 A
- Nominal AC voltage: 220/380 V and 230/400 V; Frequency: 50/60 Hz; Power Factor: 0.8 leading to 0.8 lagging
- Efficiency: Maximum 97.6%; Euro efficiency approximately 97%
- Dimensions: 702 x 422 x 281 mm; Weight: 33.6 kg; IP65 enclosure
Operating conditions and reliability
The SUN‑6K‑SG04LP3‑EU is designed for versatile deployment with a focus on reliability in varying environments. It uses transformer isolation on the battery interface to improve safety and system stability, enabling long‑term operation in harsh or outdoor settings. The unit supports a wide operating temperature range and includes protections such as anti‑islanding, input polarity protection, and comprehensive over‑ and under‑voltage safeguards, ensuring dependable performance across the intended PV storage applications.
- Transformer‑isolated 48 V battery interface for safety
- IP65 enclosure suitable for outdoor installations
- Wide operating temperature range with robust protection features
- Unbalanced output capability per phase for flexible load management
