DEYE SUN-20K-SG05LP3-EU-SM2

Key features

• High power output: 20 kW rated AC output power, up to 40 kW PV input
• Robust battery management: Max 350A charge/discharge current for 48V low-voltage battery systems
• Diesel generator compatibility: Energy storage and charging from a diesel generator is supported
• Parallel operation: Expandable up to 10 inverters in parallel for both on-grid and off-grid systems
• Multi-level energy management: Up to 6 separate time periods for charging and discharging
• AC coupling: Easy integration into existing PV systems
• 100% phase unbalance support: Ideal for systems with individual phase loading requirements
• Advanced communication: RS485, RS232, CAN, Wi-Fi, GPRS, Bluetooth, and LAN support
• Built-in protection: Protection against overvoltage, arc faults, ground faults, islanding, and short circuits
• IP65 protection: Suitable for both outdoor and indoor installations

Technical product features

Model: SUN-20K-SG05LP3-EU-SM2

Power & AC specifications

• Rated AC power: 20 000 W
• Rated AC voltage: 220/380 V or 230/400 V
• Grid frequency: 50 Hz / 60 Hz

PV input & MPPT

• Max PV power: 40 000 W
• Max PV input voltage: 800 V DC
• MPPT voltage range: 160 – 650 V
• Number of MPPT trackers: 2
• Strings per MPPT tracker: 2
• MPPT efficiency: >99%

Battery

• Battery type: Lithium-ion or lead-acid
• Battery voltage range: 40 – 60 V
• Max charge/discharge current: 350 A

Efficiency

• Max efficiency: 97.6%
• European efficiency: 97.0%

Parallel operation: Yes, up to 10 inverters

Environmental & mechanical

• Ingress protection: IP65
• Operating temperature: -40°C to +60°C (derating above 45°C)
• Cooling: Intelligent air-duct cooling
• Dimensions (W × H × D): 456 × 750 × 268.5 mm
• Weight: 50.6 kg
• Installation: Wall-mounted design

Communication & monitoring

• Communication: RS485, RS232, CAN, Wi-Fi, 4G, Bluetooth, LAN

Built-in protection

• DC & AC surge protection (Type II / Type II)
• Arc-fault protection (AFCI) – optional
• Short-circuit protection
• Anti-islanding protection
• Ground fault monitoring and residual current device (RCD) protection
• Reverse polarity protection
• Integrated DC switch
• Overtemperature protection

Applications

• High-power residential and industrial hybrid PV systems
• Dynamic energy storage solutions
• Diesel generator integration systems
• Parallel systems with up to 10 inverters
• Expansion of existing systems via AC coupling