The SUN‑20K‑SG05LP3‑EU‑SM2 is Deye’s latest 20 kW three‑phase hybrid inverter optimized for low-voltage (48 V) battery systems. Leveraging SiC MOSFET technology, it delivers high performance in a compact, modern design featuring tool‑free front access and enhanced touchscreen durability. The inverter seamlessly integrates solar PV, grid power, and battery storage, while offering intelligent backup and grid-interactive capabilities.

⚡ Key Features

⚙️ Hybrid & Backup Operation

• Combines solar, battery, and grid power with fast switchover (~4 ms) to support uninterrupted backup loads.

• Fully supports AC coupling, enabling retrofit integration with existing PV arrays and generators.

• Scalable design supports up to 10 units in parallel for expanded systems.

☀️ PV Input & MPPT Configuration

• Up to 36 kW DC PV input capacity, with two MPPT channels (each handling two strings).

• Supports MPPT voltage range 160–650 V, with maximum input voltage up to 800 V and startup at 160 V.

• High-current inputs: up to 54 A per MPPT, short-circuit currents up to 70 A.

🔋 Battery & Energy Management

• Compatible with 48 V battery systems (40–60 V), including lithium-ion and lead-acid types.

• High battery current rating: max 350 A for both charging and discharging, ideal for fast energy cycling.

• Six programmable time-blocks for charging/discharging; supports generator charging as needed.

⚡ AC Output & Load Support

• Rated AC power: 20 kW, with apparent power around 22 kVA.

• Supports 100% unbalanced loads, with up to 50% of capacity available per individual phase.

• Off-grid peak power: 2× rated output for up to 10 seconds.

• AC passthrough (grid-to-load): ~70 A.

• Power factor adjustable from 0.8 leading to 0.8 lagging; THDi <3% / DC injection <0.5%.

🧠 Efficiency & System Intelligence

• Maximum conversion efficiency: 97.6%, Euro ~97%, with MPPT efficiency exceeding 99%.

• Integrated smart communication: RS485, RS232, CAN, with optional Wi‑Fi, GPRS, 4G, Bluetooth and LAN monitoring.

• Remote firmware updates and emergency shutdown supported via Deye’s monitoring platform.