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Ordering: Solis-1P(3.6-5)K-4G-US-PLUS
• APST(APS MLRSD Transmitter)
• RGM-APST(Revenue Grade Meter and APS MLRSD Transmitter)
• RSS(Tigo MLRSD Transmitter)
• RGM-RSS(Revenue Grade Meter and Tigo MLRSD Transmitter)

Solis 3.6-5KW US plus version single phase string inverters have dual MPPTs which can be utilized in complex design environments. The maximum input current per string is up to 14A, which is compatible with high-efficiency modules and bi-facial modules. Built-in MLRSD transmitter guarantees the safety of relevant personnel and regulation compliance. The built-in class 0.5 revenue grade meter can guarantee an accurate data recording.

3.6-5kW Single Phase Inverter

Leading Features

  • String current up to 14A
  • Support module lever monitoring
  • Max. efficiency 97.7% (CEC efficiency 97.1%)
  • Integrated Arc Fault Circuit Interrupt (AFCI)
  • CA Rule 21 compliant and UL 1741 SB Certified
  • Built-in module level rapid shutdown transmitter
  • 10 years standard warranty with extension options
  • Sunspec protocol with cellular and WiFi communication
  • Fast and dynamic MPPTs and industry-leading DC voltage range
  • Optional Built-in Revenue Grade Meter, ANSI C12.20-2010 compliance

Technical Specifications

DC Values

  • Max. input voltage
    600 W
  • Rated voltage
    330 V
  • Start-up voltage
    120 V
  • MPPT voltage range
    90-520 V
  • Max. input current
    14 A / 14 A
  • Max. short circuit current
    22 A / 22 A
  • MPPT number
  • /Max. input strings number

AC Values

  • Max. apparent output power
    3.6 kVA
  • Max. output power
    3.6 kW
  • Rated grid voltage
    1Ф/PE, 240 V / 208 V
  • Rated grid frequency
    60 Hz
  • Max. output current for 240V grid
    15.0 A
  • Max. output current for 208V grid
    17.3 A
  • Power Factor
    >0.99 (0.8 leading - 0.8 lagging)
  • THDi


  • CEC efficiency


  • Ground fault monitoring
  • Anti-islanding protection
  • Integrated AFCI (DC arc-fault circuit protection)
  • Integrated DC switch
  • Rapid shutdown
    Built-In Certified Sunspec or Tigo Transmitter
  • Compliant MLRSD Products
    TS4-A-F/2F, RSD-PFK, APSmart RSD-S-PLC

General Data

  • Weight
    33.1 lbs (15 kgs)
  • Topology
  • Self consumption (night)
  • Relative humidity
  • Operating ambient temperature range
    -13°F to 140°F (-25°C to 60°C )
  • Storage environment
    -13°F to 176°F (-25°C to 80°C)
  • Ingress protection
    TYPE 4X
  • Cooling concept
    Natural convection
  • Max. operation altitude
    13120ft (4000m)
  • Compliance
    UL 1741, IEEE 1547-2018, UL 1699B, UL 1998, FCC, UL 1741SB, California Rule 21, NEC 690.12-2020


  • AC connection
    1 knockout for 3/4" conduit at bottom, side and back, OT terminal
  • Display
  • Communication
    RS485, Optional: Cellular, Wi-Fi

Case Study

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