Deye SUN-14/15/16/18/20K-SG05LP3-EU-SM2

This datasheet provides complete technical specifications for the SUN-14/15/16/18/20K-SG05LP3-EU-SM2. Models covered include SUN-14K-SG05LP3-EU-SM2, SUN-15K-SG05LP3-EU-SM2, SUN-16K-SG05LP3-EU-SM2, SUN-18K-SG05LP3-EU-SM2, and SUN-20K-SG05LP3-EU-SM2. Key specifications include a max. efficiency of 97.6%, IP65 protection, and a max. charging current of 350A. Designed for commercial applications in the Iraq.

Models Covered: SUN-14K-SG05LP3-EU-SM2, SUN-15K-SG05LP3-EU-SM2, SUN-16K-SG05LP3-EU-SM2, SUN-18K-SG05LP3-EU-SM2, SUN-20K-SG05LP3-EU-SM2

Manufacturer: Ningbo Deye Inverter Technology Co., Ltd. (Stock Code: 605117.SH)

Application: Ideal for commercial rooftops, industrial plants, and shopping malls, this inverter supports both on-grid and off-grid operations, making it versatile for various energy needs.

Three Phase LV 2 MPPT 98.6% Max Efficiency 127V/220V Grid Zero Export Ready VSG Application IP65 5-Year Warranty
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Technical Specifications

Parameter SUN-14K-SG05LP3-EU-SM2SUN-15K-SG05LP3-EU-SM2SUN-16K-SG05LP3-EU-SM2SUN-18K-SG05LP3-EU-SM2SUN-20K-SG05LP3-EU-SM2
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range (V) 40-60
Max. Charging Current (A) 260280300330350
Max. Discharging Current (A) 260280300330350
Charging Strategy for Li-ion Battery Self-adaption to BMS
Number of Battery Input 2
PV String Input Data
Max. PV Access Power (W) 2800030000320003600040000
Max. PV Input Power (W) 2240024000256002880032000
Max. PV Input Voltage (V) 800
Start-up Voltage (V) 160
MPPT Voltage Range (V) 160-650
Rated PV Input Voltage (V) 550
Max. Operating PV Input Current (A) 36+36
Max. Input Short-Circuit Current (A) 54+54
No. of MPPT Trackers / No. of Strings per MPPT Tracker 2/2+2
AC Input/Output Data
Rated AC Input/Output Active Power (W) 1400015000160001800020000
Max. AC Input/Output Apparent Power (VA) 1540016500176001980022000
Rated AC Input/Output Current (A) 21.3/20.322.8/21.824.3/23.227.3/26.130.4/29
Max. AC Input/Output Current (A) 23.4/22.425/2426.7/25.630/28.733.4/31.9
Max. Continuous AC Passthrough (grid to load) (A) 70
Peak Power (off-grid) (W) 2 times of rated power, 10s
Power Factor Adjustment Range 0.8 leading to 0.8 lagging
Rated Input/Output Voltage/Range (V) 220/380V, 230/400V, 0.85Un-1.1Un
Rated Input/Output Grid Frequency/Range (Hz) 50/45-55, 60/55-65
Grid Connection Form 3L+N+PE
Total Current Harmonic Distortion THDi <3% of nominal power
DC Injection Current <0.5% In
Efficiency
Max. Efficiency 97.6%
Euro Efficiency 97.0%
MPPT Efficiency >99%
Protection Features
Integrated DC Reverse Polarity Protection, AC Output Overcurrent Protection, Thermal Protection, AC Output Overvoltage Protection, AC Output Short Circuit Protection, DC Component Monitoring, Arc Fault Circuit Interrupter (optional), Anti-Islanding Protection, DC Switch, Insulation Impedance Detection, Residual Current Detection
Surge Protection Level TYPE II(DC), TYPE III(AC)
Communication
Communication Interface RS485/RS232/CAN
Monitor Mode GPRS/WIFI/Bluetooth/4G/LAN(optional)
Mechanical Data
Cabinet Size (W×H×D) mm 456×750×268.5 (Excluding Connectors and Brackets)
Weight (kg) 51.9
Type of Cooling Intelligent Air Cooling
Operating Conditions
Operating Temperature Range (°C) -40 to +60°C, +45°C Derating
Permissible Ambient Humidity 0-100%
Permissible Altitude 3000m
Noise (dB) <60
Ingress Protection(IP) Rating IP65

Note: Specifications are based on the official Deye SUN-18/20/21K-G04-LV datasheet. Values may be subject to change; always verify against the latest manufacturer documentation before system design and procurement.

Key Features & Technical Highlights

Dual MPPT for LV Three-Phase Systems

The SUN-18/20/21K-G04-LV series incorporates two independent MPPT trackers optimized for low-voltage three-phase grid connections. Each MPPT supports 3 strings (3+3 configuration), enabling flexible array designs across different roof orientations or partial shading scenarios.

With a wide MPPT voltage range of 200V to 700V and rated DC bus voltage of 350V, the inverter accommodates various string configurations while maintaining peak efficiency on LV 127V/220V and 133V/230V networks.

Industry-Leading Efficiency

Maximum conversion efficiency of 98.6% combined with MPPT tracking efficiency exceeding 99% minimizes energy losses throughout the system lifetime. This high efficiency directly translates to improved energy yield and faster return on investment for commercial installations.

Comprehensive Protection Suite

  • DC Side: Reverse polarity protection, surge protection (Type II), integrated DC switch
  • AC Side: Overcurrent, overvoltage, and short circuit protection with Type II surge protection
  • System Safety: Anti-islanding, residual current detection, insulation impedance monitoring
  • Thermal Management: Intelligent air cooling with automatic derating above 45°C
  • Optional: Arc Fault Circuit Interrupter (AFCI) for enhanced fire safety

Smart Monitoring & Grid Support

Standard RS485/RS232 communication ports with optional GPRS, WiFi, Bluetooth, 4G, and LAN connectivity enable comprehensive remote monitoring. Zero Export and VSG (Virtual Synchronous Generator) applications provide advanced grid interaction capabilities for self-consumption optimization and grid stability support.

Applications & Use Cases

Typical Applications

  • Commercial rooftops
  • Warehouses and logistics centers
  • Industrial plants
  • Office buildings
  • Shopping malls

Installation Notes (Iraq)

Climate Suitability: Hot desert climate in most regions. Extreme summer temperatures exceeding 50°C. Dust storms common.

Regulatory: Coordinate with MOE for grid connection requirements.

  • Ensure proper ventilation to maintain efficiency in high temperatures.
  • Coordinate with local utilities for grid connection approvals.
  • Consider additional surge protection for areas with frequent lightning.

Model Selection Guide

Selecting between the SUN-18K, SUN-20K, and SUN-21K-G04-LV depends on:

Model AC Output Max PV Input Typical Array Size*
SUN-18K-G04-LV 18 kW 23.4 kW 19.8 – 23.4 kWp
SUN-20K-G04-LV 20 kW 26 kW 22 – 26 kWp
SUN-21K-G04-LV 21 kW 27.3 kW 23.1 – 27.3 kWp

*Based on DC/AC ratio of 1.1–1.3× for optimal energy harvest in high-irradiance locations.

Frequently Asked Questions

What is the maximum efficiency of the SUN-14/15/16/18/20K-SG05LP3-EU-SM2?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 achieves a maximum efficiency of 97.6% with an MPPT efficiency greater than 99%.

What grid voltages does the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 support?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 supports grid voltages of 220/380V and 230/400V, with a range of 0.85Un-1.1Un.

How many MPPT trackers does the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 have?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 is equipped with 2 MPPT trackers, each supporting 2 strings.

What is the warranty for the SUN-14/15/16/18/20K-SG05LP3-EU-SM2?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 comes with a 5-year manufacturer warranty.

Is the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 suitable for outdoor installation?

Yes, the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 is suitable for outdoor installation with an IP65 ingress protection rating.

What protection features does the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 include?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 includes DC reverse polarity protection, AC output overcurrent protection, thermal protection, and more.

Can the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 be used in Iraq?

Yes, the SUN-14/15/16/18/20K-SG05LP3-EU-SM2 can be used in the Iraq as it supports 50Hz and 60Hz grid frequencies.

What monitoring options are available for the SUN-14/15/16/18/20K-SG05LP3-EU-SM2?

The SUN-14/15/16/18/20K-SG05LP3-EU-SM2 offers monitoring options via GPRS, WIFI, Bluetooth, 4G, and LAN (optional).