Deye

Deye SUN-20K-SG05LP3-EU-SM2 20kW Low-Voltage Hybrid Inverter Three-Phase - Latest Version

SKU: 1114

✓︎ 20 kW rated power & up to 350 A charging current
✓︎ Reliable backup power supply in case of grid failure
✓︎ Up to 10 units in parallel for more power

Available from: 22.10.2026 (Pre-orders possible)

Delivery time: ca. 3 weeks

2.018,83 €

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Deye SUN-20K-SG05LP3-EU-SM2 20kW Low-Voltage Hybrid Inverter Three-Phase - Latest Version

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Description

The Deye SUN-20K-SG05LP3-EU-SM2 is a three-phase hybrid inverter with 20 kW rated power that combines your photovoltaic system, battery storage, and the public grid into one intelligent system. The device is designed for technically demanding households and commercial operations that want to store their self-generated solar power, use it throughout the day, and rely on it as backup power in the event of a grid outage. As the current SM2 version, the inverter works with a 48 V low-voltage battery connection and a galvanically isolated transformer design.

Key Benefits for Your Energy Supply

Reliable backup power: If the public grid fails, the inverter automatically continues to supply your essential loads.
High charging power: With up to 350 A charging and discharging current, you can charge compatible battery storage systems especially fast.
Flexibly expandable: Up to 10 units can be connected in parallel - so the system grows with your energy needs.
Easy retrofitting: Via AC coupling, you can also integrate the inverter into existing PV systems.

Intelligent Use of Your Solar Power

As the heart of your energy supply, the hybrid inverter decides in real time whether the solar power generated is consumed directly, stored in the battery, or fed into the grid. Using six freely adjustable time windows, you can determine when the battery is charged and discharged - for example, to take advantage of favorable tariff periods. Thanks to 100% asymmetric phase loading, each phase can be loaded independently, which is especially efficient for uneven consumption in the household. If needed, the battery storage can also be charged via a diesel generator. This noticeably reduces your electricity bill and gives you a high degree of independence from the public grid.

Convenient Monitoring and Safe Operation

Commissioning and monitoring are conveniently handled: via the integrated interfaces (WiFi and Bluetooth, plus optional GPRS, 4G, and LAN), you can keep track of yields, consumption, and state of charge at any time via app. Extensive protective functions - including overvoltage, short-circuit, and anti-islanding protection, as well as compliance with the VDE-AR-N 4105 standard - ensure grid-compliant operation. With IP65 protection rating, the device is also suitable for installation in various environments.

GENERAL DATA (Basic Information)
Manufacturer	Deye
Model	SUN-20K-SG05LP3-EU-SM2
Device type	Three-phase hybrid inverter
Dimensions (W×H×D)	456 × 750 × 268.5 mm
Weight	51.9 kg
Protection rating	IP65
Cooling	Intelligent air cooling
Operating temperature	-40 to +60 °C (>45 °C with power derating)
Noise level	< 60 dB
Warranty	5 / 10 years (depending on installation location)
POWER & EFFICIENCY (AC Power)
Rated AC output power	20,000 W (20 kW)
Max. AC apparent power	22,000 VA
Peak power (off-grid)	2× rated power for 10 s
Max. efficiency	97.6 %
Euro efficiency	97.0 %
MPPT efficiency	> 99 %
Power factor	0.8 capacitive to 0.8 inductive
BATTERY CONNECTION (Storage Integration)
Battery type	Lead-acid or lithium-ion
Battery voltage range	40 – 60 V (48 V low-voltage)
Max. charge / discharge current	350 A / 350 A
Charging strategy (Li-ion)	Self-adaptation to the BMS
Number of battery inputs	1
PV INPUT (Solar Array)
Max. PV connection power	40,000 W
Max. PV input power	32,000 W
Max. PV input voltage	800 V
MPPT voltage range	160 – 650 V
Start-up voltage	160 V
Rated PV input voltage	550 V
Number of MPP trackers / strings	2 MPP trackers
AC OUTPUT & GRID (Grid Connection)
Rated grid voltage	230 / 400 V
Grid connection type	3L + N + PE
Grid frequency	50 / 60 Hz
Rated AC output current	(approx. 29 A)
Unbalanced load	100 % per phase (max. 50 % rated power)
Parallel connection	up to 10 units (on-grid & off-grid)
COMMUNICATION & SAFETY (Monitoring & Protection)
Communication interfaces	RS485 / RS232 / CAN
Remote monitoring	WiFi / Bluetooth (GPRS / 4G / LAN optional)
Overvoltage protection	Type II (DC & AC)
Grid connection standards	VDE-AR-N 4105, EN 50549, G99, among others
Special features	6 time windows for charging/discharging; charging via diesel generator possible; AC coupling for retrofitting