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Deye Sun 20K-SG05LP3-EU-SM2 Three-phase hybrid inverter 20KW

Description

Product information

The Deye SUN-20K-SG05LP3-EU-SM2 offers a reliable and efficient solution for energy conversion in photovoltaic systems. With its high charging and discharging capacity and support for various battery types, it is ideal for demanding energy projects.

Highlights at a glance

  • High performance: 20 kW rated output for high energy requirements
     
  • Flexible battery selectionCompatible with lead-acid and lithium-ion batteries
     
  • High charging/discharging current: Up to 350A for fast power transmission
     
  • Expandable: Parallel connection of up to 10 devices possible
     
Robust designIP65 protection class for use in various environments

 

Efficient energy conversion for modern requirements

The Deye SUN-20K-SG05LP3-EU-SM2 is specially designed to meet the requirements of modern photovoltaic systems. With its three-phase output power and support for 48V low-voltage batteries, it offers an efficient solution for energy conversion and storage.

Flexibility and scalability

Thanks to the option of connecting up to 10 devices in parallel, the inverter can be flexibly adapted to different system sizes. The support of both lead-acid and lithium-ion batteries enables customised adaptation to specific energy requirements.

Reliability and protection

With a protection class of IP65, the inverter is protected against dust and water, ensuring reliable operation in different environments. The integrated protective functions ensure safe and stable operation of the system.

Who is the Deye SUN-20K-SG05LP3-EU-SM2 suitable for?

This inverter is ideal for:

 

  • Operators of larger solar systems who are looking for a flexible and safe storage solution
     
  • Commercial enterprises that want to cover energy peaks or work off-grid
     
  • Homeowners who want to maximise their self-consumption rate
     
  • Users with diesel generator support who are aiming for maximum self-sufficiency

 

ModelSUN-20K-SG05LP3-EU-SM2
Battery input data
Battery typeLead-acid or lithium-ion
Battery voltage range (V)40~60V
Max. Charging current (A)350A
Max. Discharge current (A)350A
Charging strategy for Li-ion batterySelf-adaptation to BMS
Number of battery inputs2
Input data of the PV string
Max. DC input power (W)32000W
Max. DC input voltage (V)800V
Starting voltage (V)160V
MPPT voltage range (V)160V-650V
Rated DC input voltage (V)550V
Max. Operating PV input current (A)36+36A
Max. Input short-circuit current (A)54+54A
Number of MPP trackers/Number of MPP tracker strings2/2+2
AC input/output side
Rated AC input/output effective power20000
Max. AC input/output apparent power22000
AC input/output rated current (A)30.4/29
Max. AC input/output current (A)33.4/31.9
Max. Continuous AC passthrough (mains for charging)70
Peak power (without mains)2x rated output power, 10s
Setting range of the power factor0.8 leading to 0.8 trailing
Nominal input/output voltage/range (V)220/380V, 230/400V 0.85Un-1.1Un
Nominal input/output mains frequency/range(Hz)50/45-55, 60/55-65
Form of the mains connection3L+N+PE
Total harmonic current distortion (THDi)<3% ( rated power )
DC current power supply<0.5% In
Efficiency
Max. Efficiency97,6%
Euro efficiency97,0%
MPPT efficiency>99%
Protection of the devices
IntegratedDC reverse polarity protection, AC output overcurrent protection, AC output overvoltage protection, AC output short-circuit protection, thermal protection, DC terminal insulation impedance monitoring, DC component monitoring, earth fault current monitoring, power grid monitoring, protection against islanding, earth fault detection, overvoltage load shedding protection, residual current monitoring (RCD), overvoltage category
Overvoltage protection levelTYPE II(DC), TYPE II(AC)
Interface
Communication interfaceRS485/RS232/CAN
Monitor modeGPRS/WIFI/Bluetooth/4G/LAN (optional)
General data
Operating temperature range (℃)-40 to +60°C, >45°C power reduction
Permissible ambient humidity0-100%
Permissible height3000m
Noise (dB)<60 dB(A)
Protection classIP 65
Inverter topologyNon-insulated
Overvoltage categoryOVC II(DC), OVC III(AC)
Dimensions (WxHxD mm)456×750×268.5 (without connectors and brackets)
Weight (kg)51.9
Cooling modeIntelligent cooling
Guarantee5-year/10-year warranty period depends on the installation conditions of the inverter. Details can be found in the general warranty conditions
Mains regulationIEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE guideline R25, G99, VDE-AR-N 4105
Safety EMC / StandardIEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2

 

FAQs about the Deye Sun three-phase hybrid inverter

Which battery types are supported?

The inverter is compatible with lead-acid and lithium-ion batteries in the voltage range from 40 to 60V.

Can I operate several devices in parallel?

Yes, up to 10 units can be operated in parallel, making the inverter ideal for larger systems.

What is the maximum charging and discharging current?

The maximum charging and discharging current is 350A each, which enables fast energy transfer.

What is the standby consumption of the device?

The Deye SUN-20K-SG05LP3-EU-SM2 has a self-consumption of ≤ 60 W.

Does the 20 kW inverter fit on an 18 kWp system or do I have to oversize/undersize?

Yes, the Deye SUN 20K-SG05LP3-EU-SM2 is technically optimised for an 18 kWp system. It does not necessarily have to be oversized or undersized. With a DC/AC ratio of around 0.9, it is exactly in the ideal range (0.9 - 1.1 is recommended). This means that the system is even slightly undersized, but this has practically no disadvantages and at the same time offers scope for retrofitting additional modules at a later date.

 

Scope of delivery: Deye SUN-20K-SG05LP3-EU-SM2 (20 kW LV hybrid inverter)

 

1 x Deye SUN-20K-SG05LP3-EU-SM2 inverter

  • An extremely powerful three-phase hybrid inverter with 20 kW output, integrated LCD colour touchscreen and support for 48V low-voltage battery systems.

1 x Wall Mount Bracket

  • A solid metal mounting rail for securely fastening the appliance to a load-bearing wall.

1 x Wi-Fi stick (data logger)

  • A plug-in communication module for connection to the internet for remote monitoring via Deye Cloud or Solarman app.

3 x current transformer (CT)

  • External hinged current transformers for measuring the energy flows at the house connection, necessary for zero feed-in and self-consumption optimisation.

1 x set of PV connectors (MC4-compatible)

  • The required pairs of DC plugs (plus and minus) for connecting the PV strings to the inverter.

1 x communication cable (BMS)

  • A pre-assembled RJ45 data cable for the connection between the inverter and the battery management system.

1 x mounting set (screws and plugs)

  • A set of stainless steel screws and heavy-duty dowels for professional installation of the wall bracket.

1 x operating instructions (user manual)

  • A printed manual with detailed installation instructions, circuit diagrams and safety instructions.

Properties

Charging/discharging current: 320A
Output power: 20KW
Tension: Low voltage

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Input short-circuit current (A)54+54A Number of MPP trackers/Number of MPP tracker strings2/2+2 AC input/output side Rated AC input/output effective power15000 Max. AC input/output apparent power16500 AC input/output rated current (A)22.8/21.8 Max. AC input/output current (A)25/24 Max. Continuous AC passthrough (mains for charging)70 Peak power (without mains)2x rated output power, 10s Setting range of the power factor0.8 leading to 0.8 trailing Nominal input/output voltage/range (V)220/380V, 230/400V 0.85Un-1.1Un Nominal input/output mains frequency/range(Hz)50/45-55, 60/55-65 Form of the mains connection3L+N+PE Total harmonic current distortion (THDi)<3% ( rated power ) DC current power supply<0.5% In Efficiency Max. Efficiency97,6% Euro efficiency97,0% MPPT efficiency>99% Protection of the devices IntegratedDC reverse polarity protection, AC output overcurrent protection, AC output overvoltage protection, AC output short-circuit protection, thermal protection, DC terminal insulation impedance monitoring, DC component monitoring, earth fault current monitoring, power grid monitoring, protection against islanding, earth fault detection, overvoltage load shedding protection, residual current monitoring (RCD), overvoltage category Overvoltage protection levelTYPE II(DC), TYPE II(AC) Interface Communication interfaceRS485/RS232/CAN Monitor modeGPRS/WIFI/Bluetooth/4G/LAN (optional) General data Operating temperature range (℃)-40 to +60°C, >45°C power reduction Permissible ambient humidity0-100% Permissible height3000m Noise (dB)<60 dB(A) Protection classIP 65 Inverter topologyNon-insulated Overvoltage categoryOVC II(DC), OVC III(AC) Dimensions (WxHxD mm)456×750×268.5 (without connectors and brackets) Weight (kg)50.6 Cooling modeIntelligent cooling Guarantee5-year/10-year warranty period depends on the installation conditions of the inverter. 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The Deye SE-G5.1Pro-B is a powerful battery module with 5.12 kWh storage capacity based on safe lithium iron phosphate technology (LiFePO₄). With its modular design, support for high-current applications and its flexibility in installation, it is the ideal solution for modern energy storage systems in private and commercial settings.Highlights at a glanceSafe & durable: Cobalt-free LiFePO₄ cells with intelligent BMS Modular and scalable: Up to 64 modules – max. 327 kWh storage capacity High compatibility: Suitable for wall mounting, floor mounting & 19" rack Easy maintenance: Automatic networking, remote monitoring & USB firmware updates Reliable operation: IP20, natural cooling, wide temperature range down to -20 °CCompact, scalable & intelligently networkedWith a single capacity of 5.12 kWh, the Deye SE-G5.1Pro-B is ideal for smaller storage solutions or as a module in large modular storage systems. Thanks to the possibility to connect up to 64 units in parallel, a maximum total capacity of 327 kWh is possible. Perfect for applications with increasing energy needs. Automatic network addressing as well as support for firmware updates via USB or remote access make commissioning and maintenance much easier.Flexible to mount – space-saving & installation-friendlyThanks to three mounting options, rack mounting (19 inch), wall mounting or floor installation, the module can be optimally positioned in almost any environment. With its compact form of only 133 mm height, it saves valuable space in technical rooms or living areas.Who is the Deye SE-G5.1Pro-B suitable for?Private households looking for a safe and future-proof storage system Commercial enterprises requiring scalable storage solutions for self-consumption or backup System integrators & installers who value easy integration and low maintenance  Sustainability-orientated users who rely on environmentally friendly storage technology ModelDEYSE-G5.1 Pro-B Battery typeLiFePO4 Module capacity (kWh)5.12 Module nominal voltage (V)51.2 Module capacity (Ah)100 System nominal voltage (V)51.2 System operating voltage (V)43.2-57.6 System capacity (kWh)5.12 System usable capacity (kWh)4.6 Charge/discharge current (A) - Recommendation50 Charge/discharge current (A) - Nominal value100 Charge/discharge current (A) - Peak discharge (2 min,25°C)150 Operating temperature (°C)Charge: 0 ~ 55 / Discharge: -20 ~ 60 LCD displaySOC%, Power, Total Voltage Communication portCAN2.0, RS485 Humidity5% ~ 90% Altitude≤2000m IP protection class of the housingIP65 Storage temperature (°C)0 ~ 35 Dimensions (W/D/H, mm)440 * 133 * 540 Weight (kg)45 Installation locationFloor mounting, rack mounting Recommended depth of discharge90% Cycle lifetime25 ± 2°C, 0.5C/0.5C, EOL70% ≥ 6000 Warranty10 years CertificationsUN38.3, IEC62619, CE,UK, VDE2510-50, CEI 0-21, FCC, UL1973, UL9540A  FAQs about the Deye SE-G5.1Pro-B battery storage unitHow much energy is actually usable?One module delivers 5.12 kWh gross capacity, of which around 4.6 kWh is usable at 90% depth of discharge, particularly suitable for private and commercial applications.What voltage and currents apply per module?The module operates at 51.2 V nominal voltage and 100 Ah capacity. The continuous current is 50 A, with up to 150 A possible for 10 seconds at peak.How many modules can be combined?In the IP20 version, up to 64 modules can be connected in parallel, giving a total capacity of over 327 kWh. For home use: six modules per stack, i.e. 30.7 kWh per unit.How long does the module last?The cells achieve over 6,000 cycles at 90 % DoD, with a residual capacity of at least 70 % at the end of life, so they are designed for long-term use.Which Deye inverters is the system compatible with?The battery is officially released for all three-phase hybrid inverters of the SUN-xK-HP3 and SUN-xK-BM series, fully plug-&-play enabled without additional modifications. Scope of delivery Deye SE-G5.1Pro-B rack battery module (5.12 kWh): Module typeThis is a single, flexible low-voltage battery module for installation in 19-inch racks, for wall mounting or floor mounting.1 x Deye SE-G5.1Pro-B battery module (5.12 kWh)The central storage unit with 5.12 kWh (100 Ah) in rack format, including an intelligent, integrated battery management system (BMS).1 x set of mounting handles / rack earsHandles for easier handling and for attaching the module in a 19-inch rack.1 x set of battery connection cables (plus & minus)A pair of pre-assembled high-performance cables for connecting the module (or the battery stack) to a compatible hybrid inverter.1 x communication cable (CAN/RS485)A data cable for communication between the battery module and the inverter.1 x parallel connection cable (power & communication)Short cables to connect the power and data bus of this module to another module.1 x earthing cableA protective conductor cable for proper earthing of the housing.1 x operating and installation manualA printed manual that describes the various installation methods (rack, wall, stack).2 x wall bracketsFor wall mounting of the battery pack 4 x feetFor stacking and securing the battery