Description
Deye SUN-14K-SG05LP3-EU-SM2 14kW Three-Phase Hybrid Inverter
The Deye SUN-14K-SG05LP3-EU-SM2 is a powerful three-phase low-voltage hybrid inverter designed to manage solar generation, battery storage, grid power and backup loads within a single integrated system.
With a 14kW rated AC output and maximum apparent power of 15.4kVA, the inverter is well suited to larger homes, farms, guest accommodation, offices, commercial properties and other applications requiring a higher-capacity three-phase solar solution.
The system uses a 40–60V battery voltage range and supports both lead-acid and lithium-ion batteries, with automatic BMS adaptation. The 14kW model provides up to 260A maximum battery charging current and 260A maximum battery discharging current.
Key Features
- 14kW rated three-phase AC output
- 15.4kVA maximum apparent AC power
- 48V low-voltage battery architecture
- Compatible with lead-acid and lithium-ion batteries
- 260A maximum battery charging current
- 260A maximum battery discharging current
- Automatic battery BMS adaptation
- Support for multiple batteries in parallel
- Up to 10 inverters in parallel
- Suitable for both on-grid and off-grid operation
- AC coupling for retrofitting existing solar systems
- Supports energy storage from a diesel generator
- Six configurable battery charging/discharging time periods
- 100% unbalanced output across the three phases
- Up to 50% of rated output available on an individual phase
- Transformer-isolated design
- IP65-rated enclosure
- Intelligent air cooling
- Optional Wi-Fi, Bluetooth, 4G, GPRS and LAN monitoring
These core capabilities are highlighted in the manufacturer’s product overview on page 1.
High-Capacity Solar & Battery Integration
The Deye SUN-14K-SG05LP3-EU-SM2 can accommodate a substantial solar array, with the 14kW model supporting up to 28kW maximum PV access power and 21kW maximum PV input power.
The inverter has an 800V maximum PV input voltage, a 160V start-up voltage, and an MPPT operating range of 160–650V, providing flexibility when designing higher-capacity solar arrays.
Solar Input
- Maximum PV access power: 28,000W
- Maximum PV input power: 21,000W
- Maximum PV input voltage: 800V
- Start-up voltage: 160V
- MPPT voltage range: 160–650V
- Rated PV input voltage: 550V
- Maximum operating PV input current: 36 + 20A
- Maximum input short-circuit current: 54 + 30A
- 2 MPPT trackers
- 2/2 + 1 strings
Powerful Three-Phase Output
The 14kW model delivers:
- Rated AC output: 14,000W
- Maximum apparent power: 15,400VA
- Rated AC current: 21.3A / 20.3A
- Maximum AC current: 21.3A / 20.3A
- Maximum continuous AC passthrough: 70A
- Off-grid peak power: 2 × rated power for 10 seconds
- Power factor adjustment: 0.8 leading to 0.8 lagging
The inverter supports 220/380V or 230/400V three-phase systems with a 3L + N + PE grid connection configuration.
100% Unbalanced Three-Phase Output
One of the useful features of this Deye hybrid inverter is its ability to provide 100% unbalanced output between phases, with individual phase output capable of reaching up to 50% of the inverter’s rated power.
This can be particularly useful in installations where electrical loads are not evenly distributed across the three phases.
Battery Storage & Backup
The SUN-14K-SG05LP3-EU-SM2 operates with 40–60V batteries and supports both lithium-ion and lead-acid battery technologies.
The inverter provides up to 260A charging and 260A discharging current on the 14kW model and automatically adapts to the connected battery’s BMS.
It also supports:
- Multiple batteries connected in parallel
- Six charging/discharging time periods
- Battery energy storage from a diesel generator
- On-grid and off-grid operation
- AC-coupled solar system retrofits
AC Coupling for Existing Solar Systems
The Deye SUN-14K-SG05LP3-EU-SM2 supports AC coupling, allowing it to be incorporated into certain existing solar installations.
This can provide a practical pathway for expanding an existing solar system with battery storage and hybrid energy management rather than necessarily replacing the entire existing installation.
High Efficiency
The inverter provides:
- 97.6% maximum efficiency
- 97.0% Euro efficiency
- >99% MPPT efficiency
- Total current harmonic distortion: <3%
- DC injection current: <0.5%
These specifications are listed in the manufacturer’s technical data.
Data Sheet:
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