Deye SUN-18K-SG05LP3-EU-SM2 18 kW 3-Phase Hybrid Inverter
€2,699.00
Deye SUN-18K-SG05LP3-EU-SM2 is an 18 kW three-phase hybrid inverter with 2 MPPTs, 28,800 W PV input and 48 V batteries up to 330 A, working on-grid and off-grid.
- Free delivery across Lithuania
- 14-day returns — we pay for the return shipping
- Manufacturer warranty, CE compliant
The Deye SUN-18K-SG05LP3-EU-SM2 is an 18 kW three-phase hybrid inverter with a rated AC power of 18,000 W and a maximum PV input of 28,800 W. It has 2 MPPTs and connects to 48 V (40–60 V) lead-acid or lithium-ion batteries with a charge and discharge current of up to 330 A. Maximum efficiency is 97.6 % and protection class is IP65. It is designed for home and business solar systems with battery storage and works both grid-connected and off-grid.
Technical specifications
| Parameter | Value |
|---|---|
| Model | Deye SUN-18K-SG05LP3-EU-SM2 |
| Type | Three-phase hybrid inverter, on-grid and off-grid modes |
| Rated AC active power | 18,000 W |
| Max. AC apparent power | 18,000 W |
| Unbalanced output | 100 % per phase, max. output up to 50 % of rated power |
| Peak power in off-grid mode | 2 × rated power, 10 s |
| Max. PV input power | 28,800 W |
| Max. PV connection power | 36,000 W |
| Max. PV input voltage | 800 V |
| Start-up voltage | 160 V |
| MPPT voltage range | 160–650 V |
| Rated DC input voltage | 550 V |
| Number of MPPTs / strings | 2 / 2+2 |
| Battery type | Lead-acid or lithium-ion |
| Battery voltage range | 40–60 V (low-voltage 48 V system) |
| Number of battery ports | 1 |
| Max. charge / discharge current | 330 A / 330 A |
| Charging strategy (Li-ion) | Self-adaptation to the BMS |
| Programmable charge / discharge periods | 6 |
| Diesel generator energy storage | Supported |
| Grid connection | 3L+N+PE |
| Rated grid voltage | 220/380 V, 230/400 V (range 0.85 Un–1.1 Un) |
| Rated grid frequency | 50 Hz (45–55 Hz); 60 Hz (55–65 Hz) |
| Power factor | 0.8 leading to 0.8 lagging |
| Max. efficiency | 97.6 % |
| European efficiency | 97.0 % |
| MPPT efficiency | > 99 % |
| Current THDi | < 3 % (at rated power) |
| Ingress protection | IP65 |
| Operating temperature | −40 °C…+60 °C, derating above 45 °C |
| Relative humidity | 0–100 % |
| Max. installation altitude | 3000 m |
| Noise level | ≤ 55 dB(A) |
| Topology | Transformerless |
| Cooling | Intelligent air cooling |
| Dimensions (W × H × D) | 456 × 750 × 268.5 mm (excluding connectors and mounting brackets) |
| Weight | 50.6 kg |
| Overvoltage category | OVC II (DC), OVC III (AC) |
| Surge protection | Type II (DC), Type II (AC) |
| Communication | RS485, RS232, CAN; LCD screen; monitoring via GPRS/WiFi/Bluetooth/4G/LAN (optional) |
| Protections | DC polarity, AC output overcurrent, AC overvoltage, AC short circuit, thermal, DC component monitoring, insulation resistance detection, ground fault current monitoring, grid monitoring, anti-islanding, residual current (RCD) detection, DC input switch |
| Arc fault circuit interrupter (AFCI) | Optional |
| Grid codes | IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE-Richtlinie R25, G99, VDE-AR-N 4105 |
| Safety / EMC standards | IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 |
| Directives | LVD 2014/35/EU, EMC 2014/30/EU, RoHS 2011/65/EU |
| Manufacturer | Ningbo Deye Inverter Technology Co., Ltd. (Ningbo, Zhejiang, China) |
Download the manufacturer datasheet (PDF)
What is an 18 kW three-phase hybrid inverter used for?
The Deye SUN-18K-SG05LP3-EU-SM2 suits sites with a three-phase 230/400 V, 50 Hz connection (3L+N+PE) that need a solar system with battery storage, for homes and businesses. It manages solar generation and energy storage, and in off-grid mode it delivers twice its rated power for 10 s.
- Solar systems with batteries, when you want to use your own energy in the evening
- Off-grid systems
- Outdoor installation: IP65, operating temperature from −40 °C to +60 °C, derating above 45 °C
Hybrid inverter with battery: which batteries work?
This inverter connects to low-voltage 48 V batteries with a voltage range of 40–60 V, either lead-acid or lithium-ion. It has 1 battery port, and several batteries can be connected in parallel. With lithium-ion batteries the charging strategy adapts itself to the BMS.
You can program 6 charge and discharge periods, so charging and discharging can follow your daily schedule. We confirm which battery brands and models are compatible before you order.
How to size a hybrid inverter for a solar system
The rated AC power of this inverter is 18,000 W and the maximum PV input power is 28,800 W (maximum PV connection power 36,000 W). It has 2 MPPTs (2+2 strings), an MPPT voltage range of 160–650 V and a start-up voltage of 160 V.
The exact number of panels depends on string voltage and current, so before you order we calculate it from your roof and consumption. With an unbalanced load, 100 % of rated power is available on each phase, and maximum output reaches up to 50 % of rated power.
Off-grid operation and diesel generator
The inverter works both grid-connected and in off-grid mode, and supports storing energy from a diesel generator. Energy from the generator can be stored in the batteries.
Grid connection and installation
The inverter connects to a three-phase grid (3L+N+PE, 230/400 V), and its list of grid codes includes EN 50549 and VDE-AR-N 4105. Communication and monitoring use RS485, RS232, CAN and an LCD screen, while GPRS, WiFi, Bluetooth, 4G or LAN monitoring is available as an option. ESO (Lithuanian grid operator) states:
“Part of the surplus electricity generated can be stored in an energy storage device and used in the evening.”
We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it. A consultation before purchase is free.
What to know before you buy
- Phases: the inverter is three-phase and connects to a 3L+N+PE grid.
- Batteries: low-voltage 48 V (40–60 V) batteries are connected.
- AFCI: the arc fault circuit interrupter is optional, not standard.
- Weight and size: 50.6 kg, dimensions 456 × 750 × 268.5 mm.
- Noise: ≤ 55 dB(A).
Frequently asked questions
What is the power of the Deye SUN-18K-SG05LP3-EU-SM2?
The rated AC power is 18,000 W and the maximum PV input power is 28,800 W. It is a three-phase hybrid inverter with 2 MPPTs.
Is the Deye SUN-18K-SG05LP3-EU-SM2 three-phase?
Yes, it connects to a three-phase grid, 3L+N+PE, 230/400 V, 50 Hz.
Does this hybrid inverter work with a battery?
Yes. The Deye SUN-18K-SG05LP3-EU-SM2 connects to 48 V (40–60 V) lead-acid or lithium-ion batteries with a maximum charge and discharge current of 330 A.
Can the inverter work off-grid, without the grid?
Yes. The Deye SUN-18K-SG05LP3-EU-SM2 has an off-grid mode in which it delivers twice its rated power for 10 s. Hybrid Energy selects the batteries and configuration for your site.
Can I connect a diesel generator?
Yes, the Deye SUN-18K-SG05LP3-EU-SM2 supports storing energy from a diesel generator. Hybrid Energy installs and configures the connection.
Is it suitable for outdoor installation?
Yes. The protection class is IP65 and the operating temperature is from −40 °C to +60 °C, with derating above 45 °C.
What is the efficiency of the Deye SUN-18K-SG05LP3-EU-SM2?
Maximum efficiency is 97.6 %, European efficiency is 97.0 % and MPPT efficiency is above 99 %.
How many MPPTs does this inverter have?
The Deye SUN-18K-SG05LP3-EU-SM2 has 2 MPPTs with 2+2 strings. The MPPT voltage range is 160–650 V and the maximum PV input voltage is 800 V.
How can I monitor the inverter?
It has RS485, RS232, CAN and an LCD screen, while GPRS, WiFi, Bluetooth, 4G or LAN monitoring is available as an option.
Do you deliver and install it?
Yes. Hybrid Energy delivers anywhere in Lithuania, installs and connects the Deye SUN-18K-SG05LP3-EU-SM2. You can get a free consultation on suitable power and batteries before you buy.
Sources
| Power | 18 kW |
|---|---|
| Phases | Three-phase |
| Brand | Deye |
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