Deye 6 kW Three-Phase Hybrid Inverter – SUN-6K-SG05LP3-EU-SM2

Deye SUN-6K-SG05LP3-EU-SM2: the versatile 6 kW three-phase hybrid inverter for residential self-consumption

The Deye SUN-6K-SG05LP3-EU-SM2 is a 48 V low-voltage three-phase hybrid inverter offering a nominal AC power output of 6 kW. Part of the SG05LP3 series, it combines the robustness of three-phase systems with the flexibility of low-voltage storage. With a PV input capacity of up to 9600 W, it is ideally suited for detached homes seeking to maximise their energy independence, whilst providing critical backup functions in the event of a grid outage.

6 kW three-phase: efficiency and optimal sizing

With a maximum efficiency of 97.6% and MPPT efficiency exceeding 99%, the SUN-6K-SG05LP3-EU-SM2 guarantees optimal energy conversion. Its architecture allows it to accept up to 9600 W of photovoltaic power, offering an excellent DC/AC ratio for stable output. Thanks to its two MPPT trackers, it is perfectly suited to complex roofs with different orientations.

• Nominal AC power: 6,000 W active / 6,600 VA max
• Max PV input: 9600 W — 2 MPPT (200–650 V, max 800 V)
• Max PV input current: 13 A + 13 A
• Max efficiency: 97.6% — Euro: 97.0%
• Output THDi < 3% — Power factor: 0.8 capacitive to 0.8 inductive
• Nominal AC current: 9.1 A per phase | max 10 A per phase

48V battery storage: low-voltage safety and 135 A current

The SUN-6K-SG05LP3-EU-SM2 uses 48 V (40–60 V) lithium-ion or lead-acid batteries. Its maximum charge/discharge current of 135 A enables dynamic storage management to meet the household’s energy needs. The transformer-isolated design enhances the safety of the battery system. The inverter ensures full auto-adaptation to the BMS of lithium-ion batteries.

Battery compatibility table

👉 See the full Deye battery compatibility list (PDF) to check your specific model.

Advanced energy management: Time of Use, Peak Shaving, generator

The SUN-6K-SG05LP3-EU-SM2 offers state-of-the-art features for three-phase grid management:

• 6 Time of Use time slots: charge during off-peak hours, discharge during peak hours — reduce your energy bill
• Peak Shaving: limits power drawn from the grid to prevent exceeding your contracted power limit
• Self-consumption mode: solar priority, battery charging with surplus, feeding the rest into the grid
• Zero-feed-in mode: no feed-in to the grid, ideal for prosumers without a feed-in tariff agreement
• Priority feed-in mode: maximum feed-in to the grid (resale)
• Off-grid / backup mode: autonomous power supply from battery + panels in the event of a power cut
• Diesel generator compatibility: dedicated GEN port for battery charging during low solar output
• Battery-free mode: operates as a pure grid-tied inverter without storage
• Parallel operation: up to 16 units in parallel for installations up to 96 kW

👉 To compare the SUN-6K-SG05LP3 with other hybrid inverters in the range, see our Comprehensive Guide to Hybrid Inverters.

Monitoring via SolarmanSmart

The SUN-6K-SG05LP3-EU-SM2 features a built-in WiFi + Bluetooth module for immediate connection to the SolarmanSmart platform. The free app (iOS and Android) centralises real-time monitoring of PV output, battery status, grid consumption and operational alerts.

• WiFi + Bluetooth included as standard — 4G and LAN available as options
• Immediate remote shutdown in case of emergency
• Remote firmware updates and parameter settings
• Multi-site monitoring for professional installers

Installation

Compact and lightweight (35.2 kg — among the lightest in its class at 6 kW three-phase), the SUN-6K-SG05LP3-EU-SM2 can be wall-mounted indoors or outdoors (IP65). Its dimensions of 386 × 660 × 250 mm allow it to fit into standard technical spaces.

• Wall mounting — weight: 35.2 kg | Dimensions: 386 × 660 × 250 mm
• IP65 — indoor and outdoor | Max. altitude: 3,000 m
• Temperature range: -40°C to +60°C (derating above 45°C)
• Noise: ≤ 55 dB | Humidity: 0–100%
• Mains connection: 3L + N + PE | Frequency: 50/60 Hz
• Standards: EN 62109-1/2, EN 50549, IEEE 1547.1

Would you like to design a complete kit based on the SUN-6K-SG05LP3? Start your custom solar design →

Main Screen

The LCD screen is touch-sensitive and displays general information about the inverter.

1 • The icon in the centre of the home screen indicates that the system is operating normally. If it displays "comm./F01~F64", this means the inverter has communication errors or other faults. The error message will appear below this icon (errors F01-F64; details of the errors can be viewed in the System Alarms menu).

2 • The time is displayed at the top of the screen.

3 • System configuration icon. Press this button to access the system configuration screen, which includes basic configuration, battery configuration, grid configuration, system operating mode, generator port usage, advanced functions and Li-Ion battery information.

4 • The main screen displays information regarding solar, grid, load and battery. It also indicates the direction of energy flow using arrows. When power approaches a high level, the colour of the panels changes from green to red, allowing system information to be clearly viewed on the main screen.

- PV power and charging power always remain positive.

- A negative grid power reading indicates power being sold to the grid; a positive reading indicates power being drawn from the grid.

- A negative battery power reading indicates charging; a positive reading indicates discharging.

Remote shutdown function

Smart monitoring platform

Thanks to the smart monitoring platform, the entire Deye series of inverters supports immediate remote shutdown in the event of a fault. Remote parameter adjustment and firmware updates facilitate the operation and maintenance of photovoltaic installations.

Inverter operation with Pylontech batteries

Discover the advanced features of Deye hybrid inverters

Optimise your solar installation and manage your energy consumption more efficiently with videos dedicated to Deye hybrid inverters. Discover the best features and applications of this innovative technology. Simply click on the title to access the corresponding video.

1.Peak shaving function of the Deye hybrid inverter

Learn how to use thePeak Shavingfunction to reduce your energy consumption during peak demand periods and thus optimise your energy costs.

2.Priority feed-in mode for the Deye hybrid inverter

Discover the Deye hybrid inverter’s primary sales mode – an essential video for understanding how to present and sell this product.

3.Configuration with Pylontech lithium-ion battery

Follow our guide to connect and configure a Deye inverter with a Pylontech lithium-ion battery to maximise the efficiency of your installation.

4.Time of Use function on the Deye hybrid inverter

Optimise your energy consumption according to the time of day with theTime of Use function, to better manage your energy costs.

5.Using the Deye hybrid inverter’s smart charging

Maximise the efficiency of your system with the smart charging function, which enables optimal energy management.

6.Using battery-free mode with the Deye hybrid inverter

Learn how to operate your Deye hybrid inverter without a battery for a simpler and more cost-effective setup.

7.Parallel function of the Deye hybrid inverter

Find out how to connect several Deye inverters in parallel to increase your system’s capacity according to your energy needs.

8.Charging the battery with a diesel generator

An ideal solution for areas without constant access to the mains supply. Learn how to use a diesel generator to charge your batteries with the Deye hybrid inverter.

Optimise your energy consumption today!

Choose the video that interests you and discover how to make the most of the advanced features of Deye hybrid inverters for optimal energy management and long-term savings.

Warranty and Support

5-year warranty, offering peace of mind and assurance of reliability.

The Deye SUN-6K-SG05LP3-EU-SM2 hybrid inverter is a powerful and flexible solution for optimised energy management. With high efficiency, comprehensive protection and advanced control features, it is perfect for your energy storage needs and solar applications. Its intelligent design and robust features make it an excellent choice for modern energy requirements.

Warning: please note the following when configuring your inverter!

• Never tick the "activate battery" setting 

Active Battery (Battery Recovery Mode):

This feature allows you torecover a battery that has been over-discharged(its voltage has dropped too low). When a battery remainsdeeply discharged, it may no longer accept a normal charge and risks being damaged.

• Always enable "BMS_Err_Stop" 

When this function isenabled, if theBMS (Battery Management System)can no longer communicate withthe inverter, the inverterwill stop operatingandreport an error (fault).

Thisprotects the battery and the system, as the inverter cannot operate correctly without information from the BMS (voltage, temperature, state of charge, etc.).