DEYE SUN-21K-G04-LV String Inverter
DEYE MJS

SUN-21K-G04-LV

21kW three phase LV string inverter with 98.6% efficiency for 127V/220V grids.

  • Power Range: 21 kW
  • Max Efficiency: 98.6 %
7,350 AEDincl. VAT
Full Specifications

Features

98.6% Efficiency

Maximum energy conversion

Dual MPPT

Two independent trackers

LV Compatible

127V/220V, 133V/230V grids

Zero Export & VSG

Self-consumption & grid support

Anti-PID

Prevents panel degradation

Smart Monitoring

Optional string monitoring

Overview

The Deye SUN-21K-G04-LV is a high-performance three-phase string inverter for residential and commercial solar installations. With 21kW power range, 98.6% max efficiency, dual MPPT trackers, 200-700V MPPT range, 127V/220V or 133V/230V output, zero export and VSG support, Anti-PID function, and IP65 protection, it's designed for low-voltage grid environments.

Full specifications

Electrical

Arc fault circuit interrupter (AFCI)Optional
DC Injection Current<0.5%In
Full Load MPPT Voltage Range(V)300-700
MPPT Voltage Range(V)200-700
Max. Input Short Circuit Current (A)60+60
Max. Operating PV Input Current(A)40+40
Max. Output Fault Current (A)105.4
Max. Output Overcurrent Protection (A)115.1
Max. PV Input Power(kW)31.5
Max. PV Input Voltage(V)800
Max.AC Output Apparent Power(KVA)21
Max.AC Output Current(A)55.2/52.7
PV Input Voltage Range(V)250-800
Rated AC Output Active Power(kW)21
Rated AC Output current (A)55.2/52.7
Rated Output voltage/range (V)1.1Un
Rated PV Input Voltage(V)350
Start-up Voltage(V)250
Max. Output Overcurrent Protection115.1 A
PV Input Voltage Range250-800 V
TypeString Inverter
No. of Strings MPP Tracker3+3
No. of MPP Trackers/ No. of Strings MPP Tracker2/3+3
Anti-islanding protectionyes
Communication InterfaceRS485/RS232
Euro Efficiency98.1%
Full Load MPPT Voltage Range300-700 V
Grid Connection Form3L+N+PE
Grid RegulationNBR 16149, NBR 16150, EN 50549, RD 140
Inverter TopologyNon-Isolated
MPPT Efficiency>99%
MPPT Voltage Range200-700 V
Max. Input Short Circuit Current60+60 A
Max. Inverter Backfeed Current To the Array0
Max. Operating PV Input Current40+40 A
Max. Output Fault Current105.4 A
Max. PV Input Power31.5 kW
Max. PV Input Voltage800 V
Max.AC Output Apparent Power21 kVA
Max.AC Output Current55.2/52.7 A
Max.Efficiency98.6%
Monitor ModeGPRS/WIFI/Bluetooth/4G/LAN(optional)
Over Voltage CategoryOVC II(DC),OVC III(AC)
Power Factor Adjustment Range0.8 leading-0.8lagging
Rated AC Output Active Power21 kW
Rated AC Output current55.2/52.7 A
Rated Output Grid Frequency/range50Hz/45Hz-55Hz, 60Hz/55Hz-65 Hz
Rated Output voltage/range127V/220V, 133V/230V 0.85Un-1.1Un V
Rated PV Input Voltage350 V
Residual Current Detectionyes
Safety EMC/StandardIEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
Start-up Voltage250 V
Surge Protection LevelTYPE II(DC),TYPE II(AC)
Thermal Protectionyes
Total Current Harmonic Distortion THDi<3%
LCD/LED displayLCD1602
Rated AC Power21 kW
Max PV Voltage800 V
MPPT Trackers2
Rated Output Voltage127V/220V, 133V/230V

Mechanical

Type Of CoolingIntelligent air cooling
Ingress Protection(IP) RatingIP 65
IP RatingIP65

Environmental

Noise≤ 60 dB
Operating Temperature Range-25 to +60℃,>45℃ derating °C
Permissible Altitude4000 m
Permissible Ambient Humidity0-100%
Operating Temperature-25 to 65 °C
Max Altitude2,000 m

Certifications

  • CE
  • IEC

Troubleshooting & error codes

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