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SG-RT Series 15KW-20KW String Inverters
SG-RT Series 15KW-20KW String Inverters

SG-RT Series 15KW-20KW String Inverters

SG-RT Series 15KW-20KW Multi-MPPT String Inverter for 1000 Vdc System. Available for hand installation, no need for lifting machinery assistance.

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Description

Three Phase String Inverter SG15/17/20RT

High-Yield Performance

Ultra-low startup voltage with wide MPPT range, optimized for bifacial modules and automated PID recovery to sustain energy output.

Smart Monitoring

Real-time IV curve diagnostics and 24/7 remote system tracking via mobile app. Wireless firmware updates ensure cutting-edge operation.

Enhanced Safety

Sub-second arc fault interruption with dual DC/AC surge protection. C5-rated corrosion-resistant housing for harsh environments.

Quick Installation

21kg lightweight design, tool-free connectors, and app-guided setup within 5 minutes.


Type DesignationSG15RTSG17RTSG20RT

Input ( DC )

  • Recommended max. PV input power22.5 kWp25.5 kWp30 kW
  • Max. PV input voltage1100 V *
  • Min. PV input voltage / Start-up input voltage180V / 180V
  • Rated input voltage600 V
  • MPP voltage range160 V – 1000 V
  • No. of independent MPP inputs2
  • No. of PV strings per MPPT2/2
  • Max. PV input current50 A (25 A / 25 A)
  • Max. DC short-circuit current64 A (32 A / 32 A)
  • Max. current for input connect30 A

Output ( AC )

  • Rated AC output power15000 W17000 W20000 W
  • Max. AC output apparent power16500 VA18700 VA22000 VA
  • Rated AC output apparent power16500 VA18700 VA22000 VA
  • Max. AC output current25 A28.3 A31.9 A
  • Rated AC output current(at 230V)21.7 A24.6 A29 A
  • Rated AC voltage3 / N / PE, 220 / 380 V, 230 / 400 V, 240 / 415 V
  • AC voltage range180V – 276V / 311V - 478V
  • Rated grid frequency50 Hz / 60 Hz
  • Grid frequency range45 – 55 Hz / 55 – 65 Hz
  • Harmonic ( THD )< 3 % ( at rated power )
  • Power factor at rated power / Adjustable power factor> 0.99 / 0.8 leading - 0.8 lagging
  • Feed-in phases / Connection phases3 / 3-PE
  • Max. efficiency / European efficiency98.5 % / 98.1 %

Protection

  • Grid monitoringYes
  • DC reverse polarity protectionYes
  • AC short-circuit protectionYes
  • Leakage current protectionYes
  • Surge ProtectionDC type II / AC type II
  • Ground fault monitoringYes
  • DC switchYes
  • PV string current monitoringYes
  • Arc fault circuit interrupter ( AFCI )Yes
  • PID recovery functionYes

General Data

  • Dimensions ( W * H * D )370*480*195 mm
  • Weight21 kg
  • Mounting methodWall-mounting bracket
  • TopologyTransformerless
  • Degree of protectionIP65
  • Night power consumption< 6 W
  • CorrosionC5
  • Operating ambient temperature range-25 ℃ to 60 ℃
  • Allowable relative humidity range ( non-condensing )0 % - 100 %
  • Cooling methodSmart forced air cooling
  • Max. operating altitude4000 m
  • DisplayLED
  • CommunicationWLAN / Ethernet / RS485 / DI / DO
  • DC connection typeMC4 ( Max. 6 mm² )
  • AC connection typePlug and play
  • Grid complianceIEC / EN 61000-6-1/2/3/4, IEC 61000-3-2/3/11/12, IEC / EN62109-1/2, IEC 61727, IEC 62116, IEC 61683, IEC 60068-2-1/2/14/30/64/27,IEC TS 62910 , EN50530, AS/NZS 4777.2:2020, VDE-AR-N-4105, DIN VDE0126-1-1/A1, EN50549-1, DEWA, VFR 2019, UTE C15-712-1, PSE NC RfG, UNE 206006/7 IN, MEA/PEA, G98, UNE 217002:2020, NTS V2 TypeA
  • Grid SupportLVRT, HVRT,active & reactive power control and power ramp rate control


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