Deye SUN-3/4/5/6/8/10/12K-SG05LP3-EU-SM2 is a three-phase low-voltage hybrid inverter series designed for residential and commercial solar energy systems, with power ratings ranging from 3kW to 12kW. It integrates solar generation, battery storage, grid connection, and backup power management within one flexible energy solution.

The series supports 40–60V lead-acid or lithium-ion batteries, AC coupling for retrofitting existing solar systems, diesel generator energy storage, and up to 10 inverters in parallel for both on-grid and off-grid operation. It also supports 100% unbalanced output, making it suitable for three-phase installations with uneven loads across phases.

Applications

Residential Three-Phase Systems

Hybrid solar and battery management for homes and villas equipped with three-phase electrical systems.

Commercial Solar Systems

Flexible solar and battery storage solutions for shops, offices, and small commercial facilities.

Backup & Off-Grid Systems

Reliable three-phase backup power with battery storage for grid interruptions and off-grid applications.

Solar + Generator Hybrid Systems

Supports solar, battery, grid, and diesel generator integration for flexible hybrid energy management.

Additional information

Inverter Type	Three Phase Hybrid Inverter
Phase	Three Phase
Rated Output Power	3–12 kW
Surge Power	2× Rated Power for 10s
Output Voltage	220/380V, 230/400V
Output Frequency	50Hz / 60Hz
Max. PV Access Power	6–24 kW
Max. PV Input Power	4.8–19.2 kW
Max. PV Voltage	800V
MPPT Voltage Range	200–650V
Number of MPPTs	2
PV Strings per MPPT	1+1 / 2+2 (Model Dependent)
Compatible Battery Type	Lead-acid / Lithium-ion
Battery Voltage Range	40–60V
Max. Charging Current	70–240A (Model Dependent)
Max. Discharging Current	70–240A (Model Dependent)
Efficiency	97.6% Max. / 97.0% Euro / >99% MPPT
Parallel Connection	Up to 10 Units
Communication	Wi-Fi / RS485 / CAN
Monitoring	LCD
Ingress Protection	IP65
Operation Temp.	-40°C to +60°C (>45°C Derating)
Cooling	Intelligent Air Cooling
Noise Level	≤55 dB
Mounting Type	Wall-Mounted
Dimensions	386 × 660 × 250 mm
Approx. Weight	35.2 kg
Warranty	5 Years / 10 Years

What power ratings are available in the Deye SUN-SG05LP3-EU-SM2 series?
The series is available in 3kW, 4kW, 5kW, 6kW, 8kW, 10kW, and 12kW models.

Is the SUN-SG05LP3-EU-SM2 a three-phase inverter?
Yes. It is a three-phase hybrid inverter designed for 220/380V and 230/400V three-phase electrical systems.

What battery types are compatible with this inverter series?
The series supports both lead-acid and lithium-ion batteries with a battery voltage range of 40–60V.

What is the maximum charging and discharging current?
Depending on the model, the maximum charging/discharging current ranges from 70A to 240A, with the 12kW model supporting up to 240A.

How much PV capacity can be connected?
Depending on the selected model, the series supports up to 6kW to 24kW Max. PV Access Power and 4.8kW to 19.2kW Max. PV Input Power.

What is the maximum PV input voltage?
The maximum PV input voltage is 800V, with an MPPT operating voltage range of 200–650V.

Does the inverter support unbalanced three-phase loads?
Yes. The inverter supports 100% unbalanced output, with maximum output up to 50% of rated power for each phase.

Can multiple inverters operate in parallel?
Yes. Up to 10 units can operate in parallel for both on-grid and off-grid applications.

Does the inverter support multiple batteries in parallel?
Yes. The system supports multiple batteries in parallel for expandable energy storage configurations.

Can the inverter integrate with a diesel generator?
Yes. It supports storing energy from a diesel generator for flexible backup and hybrid energy operation.

Can it retrofit an existing solar system?
Yes. The inverter supports AC coupling, allowing it to be integrated with an existing solar installation.

Can battery charging and discharging be scheduled?
Yes. The inverter provides 6 programmable time periods for battery charging and discharging.

What is the maximum inverter efficiency?
The series achieves up to 97.6% maximum efficiency, 97.0% Euro efficiency, and greater than 99% MPPT efficiency.

What communication interfaces are available?
The inverter supports Wi-Fi, RS485, and CAN communication and features an integrated LCD display.

What environmental protection does the inverter provide?
The inverter features an IP65 protection rating and operates from -40°C to +60°C, with derating above 45°C.

What is the warranty period?
The inverter is available with a 5-year or 10-year warranty, depending on the final installation site and applicable Deye warranty policy.

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Features & Benefits