Deye Sun 14K-SG05LP3-EU-SM2 Three-phase hybrid inverter 14KW
Description
Product information
The Deye SUN-14K-SG05LP3-EU-SM2 is the perfect solution for high-performance, scalable solar systems. With its high charging performance and variable battery options, it is ideal for hybrid energy supply systems in homes and businesses.
Highlights at a glance
- Efficient performance: 14 kW rated power for diverse applications
- Flexible battery compatibility: Use with lead-acid or lithium-ion
- High current flow: Charge/discharge current up to 260A
- Expandable: Parallel connection of up to 10 devices
- Weatherproof: IP65 for outdoor and indoor applications
Reliable energy for every phase
The SUN-14K-SG05LP3-EU-SM2 from Deye is a three-phase hybrid inverter with 14 kW rated power. Thanks to asymmetric load distribution, each phase can deliver up to 50% of the total output – ideal for uneven loads.
High compatibility and scalability
The inverter works with 48V low-voltage batteries and supports both lead-acid and lithium-ion technology. Up to ten units can be operated in parallel – perfect for growing energy needs.
Safe and connected
The integrated protection mechanisms, including DC reverse polarity protection and AC short-circuit protection, ensure stable operation. With optional GPRS, WiFi, Bluetooth, 4G, or LAN, the device can be flexibly integrated into monitoring systems.
Who is the Deye SUN-14K-SG05LP3-EU-SM2 suitable for?
This inverter is ideal for:
- Homeowners with medium to high energy needs looking to optimise their self-consumption
- Businesses seeking a scalable solution for energy supply and peak load management
- Operators of existing PV systems planning to retrofit with battery storage
- Users needing diesel generator support who require a hybrid and fail-safe power supply
| Model | SUN-14K-SG05LP3-EU-SM2 |
| Battery input data | |
| Battery type | Lead-acid or lithium-ion |
| Battery voltage range (V) | 40~60V |
| Max. Charging current (A) | 260A |
| Max. Discharging current (A) | 260A |
| Charging strategy for Li-Ion battery | Self-adaptation to BMS |
| Number of battery inputs | 2 |
| PV string input data | |
| Max. DC input power (W) | 21000W |
| Max. DC input voltage (V) | 800V |
| Start voltage (V) | 160V |
| MPPT voltage range (V) | 160V-650V |
| Rated DC input voltage (V) | 550V |
| Max. operating PV input current (A) | 36+20A |
| Max. input short-circuit current (A) | 54+30A |
| Number of MPP Trackers/Number of strings per MPP Tracker | 2/2+2 |
| AC input/output side | |
| Rated AC input/output active power | 14000 |
| Max. AC input/output apparent power | 14000 |
| AC input/output rated current (A) | 21.3/20.3 |
| Max. AC input/output current (A) | 21.3/20.3 |
| Max. continuous AC passthrough (grid to charge) | 70 |
| Peak power (without grid) | 2x rated output power, 10s |
| Setting range of the power factor | 0.8 leading to 0.8 lagging |
| Nominal input/output voltage/range (V) | 220/380V, 230/400V 0.85Un-1.1Un |
| Nominal input/output grid frequency/range (Hz) | 50/45-55, 60/55-65 |
| Form of grid connection | 3L+N+PE |
| Total harmonic current distortion (THDi) | <3% ( rated power ) |
| DC current feed-in | <0,5% In |
| Efficiency | |
| Max. efficiency | 97,6% |
| Euro efficiency | 97,0% |
| MPPT efficiency | >99% |
| Device protection | |
| Integrated | DC reverse polarity protection, AC output overcurrent protection, AC output overvoltage protection, AC output short-circuit protection, thermal protection, DC terminal insulation monitoring, DC component monitoring, earth fault current monitoring, grid monitoring, anti-islanding protection, earth fault detection, overvoltage load shedding protection, residual current monitoring (RCD), overvoltage category |
| Overvoltage protection level | TYPE II(DC), TYPE II(AC) |
| Interface | |
| Communication interface | RS485/RS232/CAN |
| Monitor mode | GPRS/WIFI/Bluetooth/4G/LAN (optional) |
| General data | |
| Operating temperature range (℃) | -40 to +60°C, >45°C power reduction |
| Permissible ambient humidity | 0-100% |
| Permissible altitude | 3000m |
| Noise (dB) | <60 dB(A) |
| Degree of protection | IP 65 |
| Inverter topology | Non-isolated |
| Overvoltage category | OVC II(DC), OVC III(AC) |
| Dimensions (W x H x D mm) | 456×750×268.5 (without connectors and brackets) |
| Weight (kg) | 50.6 |
| Cooling mode | Intelligent cooling |
| Warranty | 5-year/10-year warranty period depends on inverter installation conditions. For details, please see the general warranty conditions |
| Grid control | IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE guideline R25, G99, VDE-AR-N 4105 |
| Safety EMC / Standard | IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 |
FAQs about the 14 kW Deye Sun Hybrid Inverter
Does the inverter meet all standards required in Germany and will my grid operator accept it without additional equipment?
Yes, the Deye SUN-14K fully meets the VDE-AR-N 4105 standard. A separate NA protection device is therefore not required. A current certificate from 2024 also confirms conformity with the FNN transitional solution. International grid codes such as G99 (UK), CEI 0-21 (IT) and EN 50549 (EU) are also covered.
Which 48 V batteries is the inverter compatible with and what charge/discharge currents are possible?
The SUN-14K is compatible with many common 48 V LiFePO₄ batteries. Deye provides a regularly updated compatibility list with RS485/CAN profiles and dip switch information. The permissible voltage range is 40–60 V DC. According to the manufacturer, charging and discharging currents of up to 260 A are possible – ideal for high-performance low-voltage storage.
How large can/should my PV generator power be for the 14 kW inverter to work optimally?
The device allows up to 28 kW DC input, i.e. about 200% oversizing. For east/west roofs with approx. 15 kWp, experts recommend a DC/AC ratio of about 1.07. This makes the SUN-14K the ideal choice for PV fields between 15 and 20 kWp.
How loud is the operation?
The noise level is ≤ 55 dB (A), comparable to a quiet dishwasher. The fans only start at higher temperatures (~50 °C).
Does the inverter support three-phase emergency power supply, import limiting, and remote maintenance?
Yes, the SM2 series from Deye offers true three-phase backup operation. Firmware updates, monitoring, and remote maintenance are possible via app or web portal. A factory import limit of 20 W is set – zero feed-in strategies can be implemented via Modbus. The WiFi, RS485, and CAN interfaces enable integration into systems such as Solar-Assistant or ioBroker.
Scope of delivery:
- 1x hybrid inverter
- 1x wall bracket
- 4x stainless steel collision protection screw M8x80
- 1x parallel communication cable
- 1x L-type hexagon key
- 1x battery temperature cable
- 1x magnetic ring for battery cable
- 1x magnetic ring for BMS communication cable
- 1x user manual
- 1x Wi-Fi plug
- 3x sensor terminal
Properties
| Charging/discharging current: | 260A |
|---|---|
| Output power: | 14KW |
| Tension: | Low voltage |
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