SUN-15K-SG05LP3
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Deye SUN-15K-SG05LP3 – 15 kW three-phase low-voltage (48 V) hybrid inverter for larger residential and small commercial systems
The Deye SUN-15K-SG05LP3 (SUN-15K-SG05LP3-EU-SM2) is a 15 kW rated power, three-phase, low-voltage (48 V) hybrid inverter, part of the higher-power SG05LP3-EU-SM2 (14–20 kW) series. Thanks to its robust transformer-isolated design, it is compatible with the most common 48 V batteries (lithium-ion or lead-acid), while the 2 independent MPPTs optimize production even on roofs with different orientations. It combines on-grid and off-grid operation in a single unit, making it ideal for powering larger family homes, farms, and small businesses.
Why choose the Deye SUN-15K-SG05LP3 inverter?
The Deye SUN-15K-SG05LP3 inverter operates with up to 97.6% maximum and >99% MPPT efficiency, with low <3% harmonic distortion (THD). During the day, solar energy first supplies the loads, with surplus charging the battery and feeding the grid; in case of power outage, the inverter automatically switches to battery operation. The 100% unbalanced output adapts to different loads per phase, and in off-grid mode the inverter can deliver twice the rated power for 10 seconds, allowing high-inrush machines to start. The high charge/discharge current of up to 280 A ensures fast battery charging and strong discharge performance.
Key advantages of the Deye SUN-15K-SG05LP3
- 48 V battery compatibility – transformer-isolated design, for lithium-ion and lead-acid batteries, up to 280 A charge/discharge
- 2 MPPT controllers – wide 160–650 V MPPT range for roofs with different orientations
- 100% unbalanced output – precise adaptation to real, unbalanced loads
- Strong starting power – 2× rated power for 10 s in off-grid mode
- High efficiency – up to 97.6% max. and >99% MPPT efficiency, <3% THD
- Scalability – up to 10 units can be paralleled in on-grid and off-grid modes
- AC-coupled retrofit and generator support – existing solar systems can be expanded with storage; diesel generator energy can also be stored
- Outdoor design – IP65 protection, touchscreen LCD, Wi-Fi + Bluetooth included in package
- Flexible monitoring – RS485, RS232, CAN; GPRS / 4G / LAN optionally
Applications
The Deye SUN-15K-SG05LP3 inverter is ideal for larger three-phase residential and small commercial projects: large family homes, farms, and small businesses where flexible and reliable energy management is needed with 48 V battery storage. It helps maximize self-consumption, acts as a backup power source during outages, and with 6 programmable charge/discharge periods enables off-peak charging and peak-time discharge. Thanks to AC-coupled expandability, existing solar systems can also be retrofitted with storage.
Deye SUN-15K-SG05LP3 technical specifications
| Parameter | Value |
|---|---|
| Model | SUN-15K-SG05LP3-EU-SM2 |
| Type | three-phase, low-voltage (48 V) hybrid inverter |
| Rated AC power | 15,000 W (15 kW) |
| Max. AC apparent power | 16,500 VA |
| Rated AC current (380/400 V) | 22.8 / 21.8 A |
| Max. AC current (380/400 V) | ~25 / 23.9 A |
| Rated AC voltage | 220/380 V, 230/400 V; 3L + N + PE |
| Grid frequency | 50 / 60 Hz |
| Max. continuous AC pass-through (grid→load) | 70 A |
| Peak power (off-grid, 10 s) | 2× rated |
| Power factor range | 0.8 capacitive – 0.8 inductive |
| Max. PV input power | 24,000 W |
| Max. PV voltage | 800 V |
| MPPT voltage range | 160–650 V |
| Rated PV voltage | 550 V |
| Start-up voltage | 160 V |
| Number of MPPTs / strings | 2 MPPT / 2+1 string |
| Max. operating PV current | 36+20 A |
| Max. short-circuit current | 54+30 A |
| Battery type | lead-acid or lithium-ion (48 V) |
| Battery voltage range | 40–60 V |
| Number of battery inputs | 2 |
| Max. charge/discharge current | 280 A |
| Charging strategy | self-adaptive to BMS |
| Max. efficiency | 97.6% |
| Euro efficiency | 97.0% |
| MPPT efficiency | >99% |
| THD | <3% |
| Parallel capability | up to 10 units (on-grid and off-grid) |
| Operating temperature | −40 – +60 °C (derating above >45 °C) |
| Altitude | 3,000 m |
| Noise level | ≤60 dB |
| Protection rating | IP65 |
| Cooling | intelligent air cooling |
| Monitoring | Wi-Fi + Bluetooth (included); GPRS / 4G / LAN (optional) |
| Communication | RS485, RS232, CAN |
| Surge protection | Type II (DC), Type II (AC) |
| Weight | ~51.9 kg |
| Warranty | 5 years / 10 years (depending on installation location) |
| Grid standards | IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE R25, G99, VDE-AR-N 4105 |
The max. AC current and max. PV power may vary depending on model variant/region; please verify the exact dimensions and parallel connection quantity with the current Deye SUN-14/15/16/18/20K-SG05LP3-EU-SM2 datasheet you have. Protection functions include: AC/DC overvoltage and overcurrent protection, short-circuit protection, insulation resistance and residual current protection (RCD), ground fault monitoring, anti-islanding protection, DC disconnect, and optional AFCI.
Frequently asked questions about the Deye SUN-15K-SG05LP3 inverter
What does the SUN-15K-SG05LP3-EU-SM2 designation mean?
The “15K” refers to the 15 kW rated power, the “SG05LP3” to the three-phase, low-voltage (48 V battery) hybrid platform; the 15 kW is part of the higher-power 14–20 kW sub-series.
What battery does the Deye SUN-15K-SG05LP3 work with?
Thanks to its transformer-isolated design, it is compatible with the most common 48 V (40–60 V) batteries, whether lithium-ion or lead-acid, with up to 280 A charge/discharge current.
How many solar panels can be connected to the Deye SUN-15K-SG05LP3?
The inverter has 2 MPPTs with a wide 160–650 V MPPT range, up to 800 V PV voltage and significant PV oversizing, so larger roof areas can also be utilized.
Can the Deye SUN-15K-SG05LP3 be installed outdoors?
Yes, thanks to IP65 protection and intelligent air cooling, it is suitable for outdoor installation, with an operating temperature range of −40 to +60 °C (with derating above >45 °C).
| Weight | 51,9 kg |
|---|---|
| Dimensions | 26,9 × 45,6 × 75 cm |
| Per pallet | 10 pcs |
Shipping costs
For orders over 10 units, we provide a custom quote. Our shipping partner is DACHSER.
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