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In the same series:Large-Capacity Solar Power Inverters (3 kW – 136 kW)On-Grid Inverters

DEYE SUN-45K-G04 Three Phase String Inverter

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.

Authorised Deye distributor for the Middle East — certificate No. GFKFLFI1.

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

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Online datasheetDownload datasheet (PDF)

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

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

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

Environmental

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

  • 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

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.

View error codes for this device →

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