The Deye Three-phase Hybrid Inverter SUN-20K-SG05LP3-EU-SM2 is a high-performance solution for large-scale hybrid solar systems, developed for residential, commercial, industrial, and rural applications that demand high power, intelligent energy management, and integration with 48V battery banks.

With excellent efficiency, parallel support, and extensive photovoltaic input capacity, the equipment offers stability, energy autonomy, and operational safety for modern storage and solar generation systems.

Main Features

Model: SUN-20K-SG05LP3-EU-SM2
Rated power: 20,000W
Three-phase hybrid inverter
Compatible with 48V low voltage batteries
Compatible with lithium and lead-acid batteries
Maximum charge and discharge current up to 350A
Up to 10 inverters in parallel
Compatible with retrofitting existing photovoltaic systems
6 programmable periods for battery charge and discharge
Diesel generator support
100% unbalanced output per phase
Intelligent remote monitoring
IP65 protection

Battery System

Compatible with:

Lithium batteries
Lead-acid batteries

Battery voltage range: 40V to 60V

Maximum charge current: 350A
Maximum discharge current: 350A

Automatic compatibility with BMS for lithium batteries.

Solar Input (PV)

Maximum photovoltaic access power: 40,000W
Maximum DC power: 32,000W

Maximum DC voltage: 800V
MPPT range: 160V to 650V
Starting voltage: 160V
Nominal DC voltage: 550V

Number of MPPTs: 2
Strings per MPPT: 2 + 2

Maximum input operating current: 36A + 36A
Maximum short-circuit current: 54A + 54A

AC Output

Nominal output power: 20,000W
Maximum apparent power: 22,000VA

Three-phase voltage:

220/380V or 230/400V

Frequency:

50Hz / 60Hz

Connection type:

3L + N + PE

Nominal AC output current:

30.4A / 29A

Off-grid peak power:

2 times the nominal power for up to 10 seconds, ideal for starting high loads.

Efficiency

Maximum efficiency: 97.6%
Euro efficiency: 97.0%
MPPT efficiency: greater than 99%

Low losses and excellent utilization of solar generation.

Integrated Protections

DC reverse polarity protection
AC overcurrent protection
AC overvoltage protection
AC short-circuit protection
Thermal protection
Isolation impedance detection
DC component monitoring
Anti-islanding protection
Residual current detection
Type II AC/DC surge protection
Optional AFCI

Connectivity and Monitoring

Remote monitoring via:

WiFi
Bluetooth
4G
LAN
GPRS

Communication interfaces:

RS485
RS232
CAN

Dimensions and Weight

Dimensions: 456 × 750 × 268.5 mm
Weight: 51.9 kg

Operating Conditions

Operating temperature: -40°C to +60°C
Maximum altitude: 3000 meters
Operating noise: less than 60 dB
Intelligent air cooling

Recommended Applications

Three-phase hybrid solar systems
High-consumption residences
Commercial establishments
Industries
Farms and rural properties
Energy backup
Projects with battery storage
Retrofit of existing photovoltaic systems

Competitive Advantages

High power for large-scale applications
Generator compatibility
High charge and discharge current
48V battery compatibility
Excellent energy efficiency
Advanced remote monitoring
IP65 protection for outdoor environments
Unbalanced output per phase
Expandable system with up to 10 inverters in parallel