The most powerful in its class, the Deye SUN-20K-SG05LP3-EU-SM2 is an elite 20 kW 3-phase hybrid inverter from the advanced SM2 line, designed for heavy-duty low-voltage 48V battery applications. It integrates 2 highly precise, high-current MPPT trackers. The system supports an unprecedented maximum battery charge and discharge current of up to 350A, allowing rapid energy exchange with high-capacity industrial LiFePO4 battery banks. A rapid transfer time of less than 4 ms guarantees strict uptime for advanced medical systems, commercial servers, and industrial control panels. Supports parallel cascading of up to 10 units.
Typical Applications:
- High-capacity off-grid and hybrid backup installations for grand residential estates, multi-unit complexes, and rural farms.
- Continuous industrial-grade power supply for commercial businesses (repair shops, large hotels, factories, server rooms).
Critical Warning: Due to the extremely heavy 350A current profile, copper DC cables with a minimum cross-section of 120-150 mm² (or heavy busbars) and professional-grade industrial fuses are mandatory. Program the CAN/RS485 interface to BMS protocol code "00" (Pylontech) or "12" for Felicity.
Deye SUN Hybrid Solar Inverters — The Industry Standard for Off-Grid Power Stability in Ukraine
The Deye SUN hybrid solar inverter series stands as the most recognized and requested off-grid energy storage solution in Ukraine. Designed for maximum versatility, the Deye family covers low-voltage single and three-phase models (operating with 48V battery banks, delivering an industry-leading charging current up to 240A on 12 kW), as well as heavy commercial three-phase high-voltage systems up to 50 kW (compatible with 160V–800V battery strings). The core engineering highlight of the Deye SUN series is its structural flexibility: supporting 100% unbalanced three-phase output, seamless AC coupling retrofits, and a dustproof/waterproof steel enclosure rated IP65.
Typical Applications for Deye SUN Series
- High-Efficiency Backup for Complex Phase Layouts: The 100% unbalanced phase output allows Deye to divert full single-phase power capacity onto the most heavily loaded phase without tripping adjacent phases.
- Scalable Commercial Solar Arrays (Up to 16 Units): Parallel capacity up to 16 units lets B2B engineering firms build massive modular energy storage systems for manufacturing plants, offices, and cold storage warehouses.
- Dynamic AC Coupling & Diesel Generator Auto-Start: Deye SUN dynamically mixes PV solar, grid utility, and backup generators. The integrated AC coupling frequency shift control allows it to retrofit legacy grid-tied solar systems.
What Differentiates Deye SUN from Competitors
| Parameter | Deye SUN (LP/HP) | Veichi VH Series | Growatt SPH/MOD |
|---|
| Parallel Scalability limit | Up to 16 units (Single/3-Phase) | Up to 10 units (Single/3-Phase) | Up to 6 units (option cards required) |
| Max Battery Charge Current | Up to 240A (industry record) | Up to 190A | Up to 120A |
| Phase Balancing (3PH) | 100% unbalanced phase output | Supported | Strict symmetrical phase load required |
| AC Coupling Technology | Built-in frequency shift loop | Built-in | External logic controllers required |
A key B2B advantage of the Deye SUN series is its ability to discharge and charge low-voltage (48V) battery packs at exceptionally high currents. This allows the system to rapidly recharge massive battery banks during short grid-on intervals.
When Deye SUN is NOT Suitable
- For simple single-phase residential off-grid sites under 6 kW where a large three-phase system is commercially redundant — select the Veichi SI range.
- For B2B projects requiring a solid, straightforward three-phase solar hybrid without high-end AC coupling features — select the rugged Veichi VH (VHT) range.
Our Practical On-Site Observations
Deye SUN boasts the largest number of pre-programmed Lithium battery BMS protocols in our catalog. Supporting over 30 battery brands via CAN/RS485 data buses, installers must select battery type Lithium in the menu and specify the correct BMS protocol index (such as 00 for Pylontech, 12 for Felicity, etc.). Pay careful attention to DC power cabling dimensions — running a 240A charging cycle through undersized DC cables will cause extreme heat buildup and trigger inverter emergency shutdown. Premium compatible batteries are available in our UPS lithium batteries catalog.
Delivery and payment methods
By Nova Poshta to a branch or courier to the address
Bank transfer payment
Service and Warranty
Technical support