DEYE SUN-45K-G04 Three Phase String Inverter

Solar InvertersModel SUN-45K-G04

Deye 45 kW Three-Phase String Solar Inverter SUN-45K-G04

45kW three phase string inverter with 98.7% efficiency and 1100V max PV voltage.

Deye SUN-45K-G04, 45 kW, is also searched as deye inverter.

  • Rated AC Output Active Power: 45000 W
  • Max. Efficiency: 98.7 %
  • Number of MPPTs: 3
  • Grid Connection Form: 3L+N+PE
AED 5,689incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • Delivery charge: free
  • 5-year warranty
  • Authorised Deye distributor for the Middle East — certificate No. GFKFLFI1.
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Deye 45 kW Three-Phase String Solar Inverter SUN-45K-G04 features

  • 98.7% Efficiency

    Maximum energy conversion

  • 1100V PV Input

    High voltage solar strings

  • Anti-PID

    Prevents panel degradation

  • VSG Support

    Virtual Synchronous Generator

  • String Monitoring

    Optional intelligent monitoring

  • Intelligent Cooling

    Advanced thermal management

About the Deye 45 kW Three-Phase String Solar Inverter SUN-45K-G04

Heat is what limits a rooftop inverter in a hot climate, and the Deye SUN-45K-G04 holds its full 45000 W rated AC output up to 45 °C before derating, inside an operating range of -25 °C to 60 °C and 0-100% humidity. It is a three-phase G04 string inverter on a 3L+N+PE connection, giving 68.2 A per phase at 220/380 V, a 75 A maximum and 49.5 kVA apparent. Three MPP trackers accept nine strings and 58.5 kW of PV against that 45 kW rating, tracking 200-1000 V under a 1100 V ceiling with a 250 V startup. Intelligent air cooling keeps noise below 65 dB in an IP65 case of 434 x 570 x 243 mm weighing 39 kg, certified to 4000 m. RS485, RS232, Wi-Fi and LAN report to the monitoring platform, and the SUN-45K-G04 is covered by a stated 5-year warranty. We are an authorised Deye distributor and supply the SUN-45K-G04 from our own stock, with technical support before and after the sale.

Specifications last updated 24 January 2026

Deye 45 kW Three-Phase String Solar Inverter SUN-45K-G04 full specifications

Electrical(39)

AC Output Overcurrent ProtectionYes
AC Output Overvoltage ProtectionYes
AC Output Short-Circuit ProtectionYes
AC Voltage Tolerance (×Un)0.85-1.1
Anti-Islanding ProtectionYes
Anti-PID FunctionOptional
Arc Fault Circuit Interrupter (AFCI)Optional
DC Component MonitoringYes
DC Injection Current (% of In)<0.5
DC Reverse Polarity ProtectionYes
European Efficiency98.1 %
Grid Connection Form3L+N+PE
Insulation Impedance DetectionYes
Inverter TopologyNon-Isolated
Max. AC Output Apparent Power49500 VA
Max. AC Output Current75/71.7 A
Max. Efficiency98.7 %
Max. Input Short-Circuit Current60+60+60 A
Max. Operating PV Input Current40+40+40 A
Max. PV Input Power58500 W
Max. PV Input Voltage1100 V
Number of MPPTs3
MPPT Efficiency>99 %
MPPT Voltage Range200-1000 V
Overvoltage CategoryOVC II(DC), OVC III(AC)
Power Factor Range (Leading to Lagging)0.8-0.8
Rated AC Output Active Power45000 W
Rated AC Output Current68.2/65.2 A
Rated Grid Frequency50/45-55, 60/55-65 Hz
Rated Output Voltage220/380, 230/400 V
Rated PV Input Voltage600 V
Residual Current DetectionYes
Startup Voltage250 V
Strings per MPPT3+3+3
Surge Protection LevelTYPE II(DC), TYPE II(AC)
Current Total Harmonic Distortion (THDi)<3 %
Virtual Synchronous Generator (VSG) SupportYes
Warranty (Years)5
Zero Export SupportYes

Mechanical(6)

Cabinet Dimensions434 x 570 x 243 mm
Communication InterfacesRS485, RS232, Wi-Fi, LAN
DC SwitchYes
LCD/LED DisplayLCD1602
String MonitoringOptional
Weight39 kg

Environmental(8)

Derating Start Temperature45 °C
IP RatingIP65
Noise Level<65 dB
Operating Temperature Range-25 to 60 °C
Max. Operating Altitude4000 m
Permissible Ambient Humidity0-100 %
Thermal ProtectionYes
Cooling TypeIntelligent Air Cooling

Certifications(21)

  • IEC 61727
  • IEC 62116
  • CEI 0-21
  • EN 50549-1
  • NRS 097
  • G98
  • G99
  • VDE-AR-N 4105
  • NC RFG
  • IEC 61000-6-1
  • EN 61000-6-1
  • IEC 61000-6-2
  • EN 61000-6-2
  • IEC 61000-6-3
  • EN 61000-6-3
  • IEC 61000-6-4
  • EN 61000-6-4
  • IEC 62109-1
  • EN 62109-1
  • IEC 62109-2
  • EN 62109-2

Downloads & support

PDFThe manufacturer's sheet, to print or share

Troubleshooting & error codes

Looking up an error code on this Deye SUN G04/G05/G06 3-Phase? Browse the full list of codes for this device, with the cause and recommended fix for each.

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Frequently Asked Questions

Is the Deye SUN-45K-G04 suitable for the Middle East climate?

Yes. The SUN-45K-G04 is rated -25 to 60 °C, with derating above 45 °C, which covers the heat and dust of the Gulf, North Africa and the wider MEA region. Mount it in shade for the best summer output. Its IP 65 rating handles dust and humidity.

What is the maximum PV input power?

The SUN-45K-G04 series supports up to 58.5kW of PV input power, allowing for high DC/AC ratios and maximum energy harvest.

Does it support Anti-PID function?

Yes, as an option. On the SUN-45K-G04, Anti-PID is an optional function: it counters potential-induced degradation (PID) of the connected solar panels, which otherwise erodes their output over the years.

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