Deye 5kW Single-Phase Hybrid Inverter – SUN-5K-SG04LP1-EU-SM2

The Deye SUN-5K-SG04LP1-EU-SM2 is an advanced single-phase hybrid solar inverter designed to intelligently manage solar PV generation, battery storage, grid power, and backup energy sources.

Combining high PV input capacity, intelligent battery management, AC-coupling capability, and flexible operating modes, this inverter is an excellent solution for residential, backup power, solar-plus-storage, and small commercial applications.

With a 500V maximum PV input voltage, two MPPT trackers, support for lithium-ion and lead-acid batteries, and the ability to operate multiple units in parallel, the SUN-5K-SG04LP1-EU-SM2 provides a scalable platform for modern solar energy systems.

The inverter features a colour LCD display, IP65 protection, smart cooling, programmable battery charging/discharging periods, diesel generator integration, and advanced communication interfaces, giving users greater control over how energy is generated, stored, and consumed.

Important: The supplied specifications contain a model/rating inconsistency: the product is identified as a 5kW inverter, while the AC specifications provided state 8,000W rated AC active power. The product description below preserves the supplied technical data, but the final rated AC output should be verified against the latest manufacturer datasheet before listing or installation.

Key Product Features

5kW Single-Phase Hybrid Inverter

The Deye SUN-5K-SG04LP1-EU-SM2 is designed as a single-phase hybrid inverter for applications requiring intelligent coordination between solar generation, battery storage, and the electrical grid.

It can be configured to prioritise solar energy, charge batteries with excess PV generation, supply loads from stored energy, and provide backup power when grid electricity is unavailable.

500V Maximum PV Input Voltage

The inverter supports a maximum PV input voltage of 500V, making it suitable for a wide range of solar-panel configurations.

Its PV input specifications include:

• Maximum PV access power: 16,000W
• Maximum PV input power: 12,800W
• Maximum PV input voltage: 500V
• Start-up voltage: 125V
• PV input voltage range: 125–500V
• MPPT voltage range: 150–425V
• Full-load MPPT voltage range: 200–425V
• Rated PV input voltage: 370V

This high PV capacity allows the system to accommodate a substantial solar array while maintaining flexible energy harvesting.

Dual MPPT Tracking

The inverter features 2 MPPT trackers with 2+2 strings, allowing greater flexibility when designing the solar array.

Multiple MPPT trackers can be particularly useful where panels are installed on different roof orientations or where array sections experience different operating conditions.

The inverter supports:

• 2 MPPT trackers
• 2+2 PV strings
• Maximum operating PV input current: 26A + 26A
• Maximum short-circuit current: 34A + 34A

Lithium-Ion and Lead-Acid Battery Support

The inverter supports both:

• Lithium-ion batteries
• Lead-acid batteries

The battery system operates around a nominal 48Vdc platform, with a specified battery voltage range of 40–60Vdc.

For compatible lithium-ion batteries, the inverter provides a self-adaptive BMS charging strategy, allowing the inverter to coordinate battery charging with the battery management system.

High Battery Charging and Discharging Capability

The supplied specifications state a maximum battery charging/discharging current of 190A DC, providing substantial battery power capability.

This allows the inverter to rapidly charge the battery from available solar energy and discharge stored energy when required.

Note: The product feature summary states 120A, while the detailed technical specification states 190A DC. The detailed value should be verified against the latest manufacturer documentation before publishing final specifications.

Multiple Batteries in Parallel

The inverter supports multiple batteries connected in parallel, allowing the available battery-storage capacity to be increased according to the energy requirements of the installation.

This provides flexibility for customers who require longer backup runtime or higher available battery capacity.

AC Coupling for Solar System Retrofits

The SUN-5K-SG04LP1-EU-SM2 supports AC coupling, making it suitable for selected retrofit applications.

This allows an existing solar installation to be upgraded with battery-storage and backup functionality without necessarily replacing the complete existing PV system.

On-Grid and Off-Grid Operation

The inverter can be configured for both on-grid and off-grid applications, providing flexibility for different energy requirements.

Typical operating applications include:

• Grid-connected solar systems
• Solar battery storage
• Backup power
• Off-grid energy systems
• Solar retrofit projects
• Self-consumption systems
• Peak-demand management

Parallel Operation – Up to 16 Units

Up to 16 compatible inverters can be connected in parallel, enabling significant system expansion.

This allows installers to increase overall system capacity as energy requirements grow and provides flexibility for larger residential and commercial installations.

Parallel configurations should always be designed and commissioned according to the manufacturer’s approved configuration requirements.

Six Programmable Battery Time Periods

The inverter provides six configurable time periods for battery charging and discharging.

This enables users to establish customised energy schedules based on:

• Solar production
• Electricity tariffs
• Peak and off-peak periods
• Battery availability
• Load requirements
• Grid conditions

The feature can help maximise self-consumption and improve the economic utilisation of stored energy.

Diesel Generator Integration

The inverter supports storing energy from a diesel generator, providing an additional energy source for hybrid and backup systems.

This is particularly useful for applications where grid availability is unreliable or where extended backup operation is required.

The generator can supplement solar and battery power when additional energy is required.

Intelligent Energy Management

The SUN-5K-SG04LP1-EU-SM2 is designed to intelligently coordinate different energy sources.

Depending on system configuration, energy can be managed between:

Solar PV → Loads → Battery → Grid/Generator

This allows surplus solar energy to be stored rather than wasted, while stored battery energy can subsequently be used to supply loads.

This functionality can help users:

• Increase solar self-consumption
• Reduce grid dependency
• Store excess solar generation
• Provide backup power
• Manage energy according to time periods
• Improve utilisation of battery storage
• Integrate generator backup

Colour LCD and LED Display

The inverter includes an LCD + LED display for monitoring and configuration.

The display provides a convenient interface for viewing system information and operating status.

Its intuitive interface makes it easier for installers and users to monitor the system and configure supported operating parameters.

Communication and Monitoring

The inverter provides several communication interfaces for system integration and monitoring.

Standard Communication Interfaces

• RS232
• RS485
• CAN

Optional Monitoring Connectivity

Depending on the selected configuration, monitoring may be available through:

• GPRS
• Wi-Fi
• Bluetooth
• 4G
• LAN

These communication options provide flexibility for remote monitoring and integration with compatible energy-management platforms.

High Conversion Efficiency

The Deye inverter is designed to provide efficient conversion of solar and battery energy.

Efficiency Ratings

• Maximum efficiency: 97.60%
• Euro efficiency: 96.50%
• MPPT efficiency: Designed for high-efficiency solar tracking

The high conversion efficiency helps reduce energy losses and maximise usable solar production.

Advanced Protection Features

The inverter incorporates a range of protection and monitoring functions designed to improve system safety and operational reliability.

The system includes protection and monitoring against abnormal electrical conditions, with protection architecture suitable for both the DC PV side and AC output side.

Protection considerations include:

• PV input protection
• AC output protection
• Battery protection
• Overcurrent protection
• Overvoltage protection
• Thermal protection
• Short-circuit protection
• Surge protection
• Electrical monitoring

The inverter is specified with OVC II on the DC side and OVC III on the AC side.

IP65 Protection Rating

The inverter features an IP65-rated enclosure, providing protection against dust and water ingress when installed correctly.

This makes the unit suitable for indoor and appropriate outdoor installations, subject to the manufacturer’s installation requirements and environmental limitations.

Smart Cooling System

The inverter uses smart cooling technology to regulate operating temperature.

It is specified for operation from -40°C to +60°C, with power derating above 45°C.

The specified noise level is below 30dB, making the inverter suitable for applications where low operating noise is desirable.

Wide Environmental Operating Range

The inverter is designed to operate under demanding environmental conditions.

Environmental Specifications

• Operating temperature: -40°C to +60°C
• Derating: Above 45°C
• Permissible ambient humidity: 0–100%
• Maximum permissible altitude: 2,000m
• Noise level: <30dB
• Protection rating: IP65

AC Input and Output

The supplied AC specifications include:

• Rated AC input/output active power: 8,000W
• Maximum AC input/output apparent power: 8,800VA
• Peak off-grid power: 2× rated power for 10 seconds
• Rated AC input/output current: 36.4A / 34.8A
• Maximum AC input/output current: 40A / 38.3A
• Maximum continuous AC passthrough: 50A
• Maximum output fault current: 80A
• Maximum output overcurrent protection: 140A
• Rated voltage: 220/230V
• Voltage range: 0.85Un–1.1Un
• Grid connection: L + N + PE
• Rated frequency: 50Hz / 60Hz
• 50Hz frequency range: 45–55Hz
• 60Hz frequency range: 55–65Hz
• Power factor adjustment: 0.8 leading to 0.8 lagging
• Total harmonic distortion: <3% at rated power
• DC injection current: <0.5% In

Peak Off-Grid Power

The inverter can deliver up to 2 times rated power for 10 seconds in off-grid operation.

This peak capability can assist with loads that require additional startup power, such as certain motors, pumps, compressors, and other equipment with high initial power requirements.

Technical Specifications

Battery Input

Specification	Details
Battery Type	Lead-acid or Li-ion
Nominal Battery Voltage	48Vdc
Battery Voltage Range	40–60Vdc
Maximum Charging/Discharging Current	190A DC*
Lithium Battery Charging Strategy	Self-adaptation to BMS
Number of Battery Inputs	1

*The supplied product feature summary states 120A, while the detailed specification states 190A DC. Confirm the final value with the manufacturer before publication.

PV Input

Specification	Details
Maximum PV Access Power	16,000W
Maximum PV Input Power	12,800W
Maximum PV Input Voltage	500V
Start-Up Voltage	125V
PV Input Voltage Range	125–500V
MPPT Voltage Range	150–425V
Full-Load MPPT Voltage Range	200–425V
Rated PV Input Voltage	370V
Maximum Operating PV Input Current	26A + 26A
Maximum Short-Circuit Current	34A + 34A
MPPT Trackers	2
PV Strings	2 + 2
Maximum Inverter Backfeed Current to Array	0A

AC Input / Output

Specification	Details
Rated AC Input/Output Active Power	8,000W*
Maximum AC Input/Output Apparent Power	8,800VA
Peak Off-Grid Power	2× rated power for 10 seconds
Rated AC Input Current	36.4A
Rated AC Output Current	34.8A
Maximum AC Input Current	40A
Maximum AC Output Current	38.3A
Maximum Continuous AC Passthrough	50A
Maximum Output Fault Current	80A
Maximum Output Overcurrent Protection	140A
Rated Voltage	220/230V
Voltage Range	0.85Un–1.1Un
Grid Connection	L + N + PE
Rated Frequency	50Hz / 60Hz
Frequency Range	45–55Hz / 55–65Hz
Power Factor Adjustment	0.8 leading to 0.8 lagging
THD	<3% at rated power
DC Injection Current	<0.5% In

*The product title identifies the unit as a 5kW model, while the supplied AC specification states 8kW rated active power. Verify the correct model-specific rating before final publication or installation.

Efficiency

Specification	Details
Maximum Efficiency	97.60%
Euro Efficiency	96.50%

Display & Communication

Feature	Specification
Display	LCD + LED
Standard Communication	RS232, RS485, CAN
Optional Monitoring	GPRS / Wi-Fi / Bluetooth / 4G / LAN

General Data

Specification	Details
Operating Temperature	-40°C to +60°C
Temperature Derating	Above 45°C
Ambient Humidity	0–100%
Maximum Altitude	2,000m
Noise Level	<30dB
Ingress Protection	IP65
Inverter Topology	Non-isolated
Overvoltage Category	OVC II (DC), OVC III (AC)
Dimensions	366 × 589.5 × 237mm
Weight	25.2kg
Cooling	Smart Cooling
Warranty	5 Years

Ideal Applications

The Deye SUN-5K-SG04LP1-EU-SM2 can be used in a variety of applications, including:

Residential Solar & Battery Systems

Ideal for homes looking to maximise solar self-consumption while storing excess energy for later use.

Backup Power

Provides an effective platform for battery-backed power during grid interruptions.

Off-Grid Applications

Suitable for locations requiring an integrated solar, battery, and generator energy solution.

Solar System Retrofits

AC-coupling capability makes it suitable for selected existing PV systems requiring additional energy storage.

Small Commercial Systems

Can be deployed in suitable small commercial environments requiring reliable single-phase energy management.

Generator Hybrid Systems

Can integrate diesel-generator energy into the overall system, allowing stored generator energy to be used when required.

Key Benefits

• 500V maximum PV input
• Up to 16kW PV access power
• Up to 12.8kW maximum PV input power
• Dual MPPT tracking
• 48V battery architecture
• Lithium-ion and lead-acid battery support
• Self-adaptive lithium battery BMS charging
• High battery charging/discharging capability
• Multiple batteries can be connected in parallel
• AC coupling for selected retrofit applications
• Up to 16 inverters in parallel
• Six programmable battery charging/discharging periods
• Diesel generator energy-storage support
• 2× rated peak power for 10 seconds
• 97.60% maximum efficiency
• Colour LCD + LED display
• RS232, RS485 and CAN communication
• Optional Wi-Fi, Bluetooth, 4G, GPRS and LAN monitoring
• IP65-rated enclosure
• Smart cooling
• -40°C to +60°C operating temperature range
• <30dB operating noise
• 5-year warranty

Why Choose the Deye SUN-5K-SG04LP1-EU-SM2?

The Deye SUN-5K-SG04LP1-EU-SM2 provides a flexible platform for combining solar PV, battery storage, grid electricity, and generator backup into one intelligent energy-management system.

Its 500V PV input, dual MPPT design, high PV capacity, 48V battery compatibility, AC-coupling functionality, programmable battery schedules, and parallel capability make it suitable for a wide range of modern solar and energy-storage applications.

With an IP65 enclosure, smart cooling, advanced protection, multiple communication interfaces, and high conversion efficiency, this Deye hybrid inverter is designed to provide reliable energy management for residential and small commercial installations.

Important technical note: Before publishing this product for sale, confirm the exact model number and the conflicting 5kW vs 8kW AC rating and 120A vs 190A battery-current rating against the latest official Deye datasheet. The final product listing should use only the manufacturer-confirmed values.