Solarmi Deye SUN-20K-SG05LP3-EU-SM2 Hybrid inverter with limiter, 20kW, 3-phase, 400V

Multifunctional 3-phase asymmetric (100%) hybrid inverter by DEYE, combining inverter, solar charger, and battery charger functions. Its biggest advantage is the adjustable "smart load" input/output, which can be used to connect a generator, string inverter, or heating element for water heating. A comprehensive LCD display ensures user-configurable and easily accessible control (battery charging, AC/solar charging, acceptable input voltage depending on application, etc.). Equipped with RS-485/CAN port for communication and management. The inverter provides additional information, statistics, graphs, and remote management capability via the included Wi-Fi dongle. Consumption probes and a datalogger (Wi-Fi) are included. Energy meter not included.

These inverters come with a great SmartLoad feature, allowing you to connect a 230V appliance under specific conditions. The GEN port is used for such an appliance, which can be reconfigured from a generator port to a smart-switched appliance port. If the battery is, for example, charged to 90%, the inverter activates the GEN port and connects a device such as a boiler. When the battery capacity drops to the preset level, the device on the GEN port is disconnected again. This way, energy surpluses can be efficiently used for water heating in boilers, pools, etc.

This inverter is approved for connection to the distribution system according to PPDS 2025. We will provide the RfG compliance verification report upon request.

BASIC SPECIFICATION

Charger (battery)
Battery type: Lead-acid, lithium-ion battery
Battery voltage range: 40–60 V
Max. charging current: 350 A
Max. discharging current: 350 A
Charging profile: 3-stage / equalization
Charging system for Li-Ion batteries: adapted via BMS system

PV input (photovoltaics)
Max. DC input power: 40,000 W
PV input voltage: 550 V (160–800 V)
MPPT range: 160–650 V
DC voltage range at full load: 160–800 V
Start-up voltage: 160 V
PV input current: 36 A + 36 A
Max. PV ISC: 54 A + 54 A
Number of MPPTs: 2
Number of strings per MPPT: 2 + 2

Inverter (AC output)

Power (nominal): 20,000 W (max. 22,000 W)
Power (peak): 2× nominal, 10 seconds
Nominal current: 30.4 A (max. 33.4 A)
Max. continuous AC passthrough current: 70 A
Output voltage: AC 220/380 V, AC 230/400 V (50/60 Hz), 3L/N/PE

Efficiency: 97% (MPPT 99%)
Protection rating: IP65
Dimensions: 750 × 456 × 268.5 mm
Weight: 51.9 kg