Deye 14–20kW Three-Phase Hybrid Inverter
The SG05LP3-EU-SM2 series brings PV generation, low-voltage battery storage and three-phase AC management together in one wall-mounted inverter. Solarayen supplies the original Deye-branded equipment for larger homes, small commercial premises and installer or distribution projects.
Available ratings are 14kW, 15kW, 16kW, 18kW, 20kW. Select the exact model against the site supply, load profile, PV array and compatible battery. The series has two battery inputs; the quoted charge/discharge limit is the inverter model rating, not a separate allowance for each input.
Conceptual application illustration. Final installation follows the approved design and manufacturer instructions.
Key Features
- Low-voltage storage: 40–60V battery range with transformer isolation on the battery side.
- Three-phase load flexibility: unbalanced output supported, up to 50% of rated inverter power on one phase, within the overall output limit.
- Time-based battery control: six charging and discharging periods.
- Expansion options: up to ten compatible inverters in parallel, following the manufacturer’s configuration requirements.
- Flexible integration: generator charging and AC coupling for suitable existing PV systems.
- Protected enclosure: IP65 with intelligent air cooling; install with the required ventilation and weather protection.
Model Comparison
| Specification | 14kW | 15kW | 16kW | 18kW | 20kW |
|---|---|---|---|---|---|
| Rated AC power | 14kW | 15kW | 16kW | 18kW | 20kW |
| Max. battery charge / discharge current | 260A | 280A | 300A | 330A | 350A |
| Max. PV access power | 28kW | 30kW | 32kW | 36kW | 40kW |
| Max. PV input power | 22.4kW | 24kW | 25.6kW | 28.8kW | 32kW |
Full model format: SUN-[rating]K-SG05LP3-EU-SM2. PV access power and PV input power are distinct manufacturer ratings; both must be checked when sizing the array.
Technical Specifications
| Item | Specification |
|---|---|
| Battery chemistry / voltage | Lithium-ion or lead-acid / 40–60V |
| Number of battery inputs | 2 |
| Maximum PV voltage | 800V |
| Startup voltage | 160V |
| MPPT voltage range | 160–650V |
| PV operating / short-circuit current | 36 + 36A / 54 + 54A |
| MPPT / strings per tracker | 2 / 2 + 2 |
| AC supply | 220/380V or 230/400V; 3L + N + PE; 50/60Hz |
| Continuous AC passthrough, grid to load | 70A |
| Off-grid peak power | 2 × rated power for 10 seconds |
| Maximum / Euro efficiency | 97.6% / 97.0% |
| Communication | WiFi, RS485, CAN |
| Cabinet dimensions (W × H × D) | 456 × 750 × 268.5mm |
| Weight | 51.9kg |
| Operating temperature | −40°C to +60°C; derating above 45°C |
| Maximum altitude | 3,000m |
| Protection / cooling | IP65 / intelligent air cooling |
Cabinet dimensions exclude connectors and mounting brackets. Use the gallery dimension drawing and installation manual when planning the mounting area.
Mounting and Cooling
The rear view shows the mounting structure and cooling fans. Keep the specified clearances available for airflow and service access.
Side Controls
The original side view shows the power button and DC switch. Switching and isolation procedures follow the Deye manual.
Controls and Connection Interfaces
The manufacturer overview identifies the display, battery connectors, PV inputs and grid, load and generator connections. It also locates BMS, meter and parallel communication ports.
Applications
- Three-phase solar self-consumption with compatible low-voltage battery storage.
- Backup supply for selected loads within system ratings.
- Suitable AC-coupled upgrades and generator-supported storage systems.
- Installer, distributor and small commercial solar-storage projects.
Frequently Asked Questions
Can this inverter use a 51.2V LiFePO4 battery?
The battery voltage is within the 40–60V range. Confirm the battery’s BMS protocol, firmware, current capability and usable energy before pairing.
What does unbalanced output mean?
The three phases can supply different loads. Deye specifies up to 50% of rated inverter power on one phase; total load remains subject to the inverter’s overall rating.
Is 350A available on both battery inputs separately?
No. 350A is the maximum charge/discharge rating listed for the 20kW inverter. Confirm current sharing, battery banks and protection against the exact manual.
How is backup duration determined?
Runtime depends on usable battery energy, load demand and conversion losses. An inverter power rating alone does not define backup hours.
What warranty and grid approvals apply?
Deye lists five years with up to ten years depending on installation country and policy. Confirm the model-specific approval documents and warranty terms for your destination before ordering.
Downloads
Deye official installation manual (PDF)
Request a Quotation
Send the required power, destination country, battery model and quantity. Solarayen will confirm a suitable configuration and prepare the specification and quotation.
