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Reliability    Safety    Capacity


Ordering: S6-EH1P(3.8-11.4)K-H-US      
• APST (APS MLRSD Transmitter)      
• RSS (Tigo MLRSD Transmitter)      
• ENT (Enteligent MLRSD Transmitter)      

The S6 (Series 6) hybrid energy storage inverter is the latest Solis US model certified to IEEE 1547-2018, UL 1741 SA & SB, and SunSpec Modbus, providing economical zero-carbon power from an all-weather (NEMA 4X / IP 66) high-efficiency PV string inverter. This new PV / Battery inverter can be DC-coupled to a variety of certified high-voltage Lithium batteries. The S6 hybrid is a grid-forming inverter that supports the latest large PV modules with high current (16 amp) dc inputs at each MPPT. 

Solis Residential High Voltage Energy Storage Inverter

Leading Features

  • Backup transfer (switch) time is < 10ms

  • UL 1741 SA/SB and UL 9540 certified

  • Maximum PV input current up to 16A per string

  • California Rule 21 and HECO Rule 14H compliant

  • Generates 120/240V backup power without an external autotransformer

  • DC to DC battery charging for optimal use of PVgenerated energy

  • External RSD & emergency power off switch options are also available

  • Able to supply a wide range of continuous backup power in the event of a grid outage

  • Generates up to 50A/114kW of continuous backup power with up to 76A for ten seconds

  • Compatible with multiple battery brands, providing up to 150 kWh of storage capacity per inverter

  • Allows up to ten (10) inverters to be stacked in parallel for maximum scalability and flexibility

  • SolisCloud allows for remote system troubleshooting, firmware upgrading, and configuration, reducing O&M costs

  • NEC 2020 compliant with various integrated RSD transmitter options are available for module-level rapid shutdown

  • Supports operation in parallel with a generator and allows the generator to function as the grid source if utility power is lost

  • Optional integrated revenue-grade meter and external energy meter for production & consumption monitoring and export power control

Technical Specifications

DC Input (PV)

  • Rated voltage
    380 V
  • Start-up voltage
    80 V
  • MPPT voltage range
    80-520 V
  • Max. input current per string
    16 A
  • Max. short circuit current per string
    25.6 A
  • Number of MPPTs
  • Number of strings per MPPT

Energy Storage

  • Battery voltage range
    120-500 V
  • Maximum charge/discharge current
    25 A
  • Battery Communication
  • Number of batteries per inverter
    See Battery Compatibility Sheet

AC Output (Grid)

  • Max. apparent output power
    3.8 kVA
  • Rated output voltage
    240 V
  • Rated frequency
    60 Hz
  • Rated output current
    15.8 A
  • Max. output current
    15.8 A
  • THDi

AC Input (Grid)

  • Max. input current
    23.8 A
  • Frequency range
    58.8-61.2 Hz

AC Output (Backup and Off-grid)

  • Max. apparent output power

    6.1 kVA, 10 sec
  • Back-up switch time

    <10 ms
  • Phase Power

    240 V Split-Phase
  • Rated output voltage (L1-L2)

    240 V
  • AC output voltage range

    211-264 V
  • Rated grid frequency

    60 Hz
  • Frequency range

    55-65 Hz
  • Rated AC output current

    15.8 A
  • Max. output overcurrent protection, 10 sec

    25.4 A
  • Max. allowable phase imbalance

  • Backup support configurations

    Whole-home and dedicated loads
  • Power factor

    >0.99 (0.8 leading - 0.8 lagging)
  • THDv (@linear load)



  • PV CEC efficiency

  • BAT charged by PV Max. efficiency

  • BAT charged/discharged to AC Max. efficiency



  • Residual (leakage) current detection

  • Integrated AFCI (DC arc-fault circuit protection)

  • DC reverse-polarity protection

    Yes (PV only)
  • Rapid Shutdown NEC 2017

    Integrated SunSpec-certified Transmitter
  • Compatible RSD Receivers

    See MLRSD Compatibility Sheet
  • Protection class/Over voltage category

  • Manual inverter bypass switch


General data

  • Weight

    59.52 lbs (27 kgs)
  • Topology

  • Self-consumption (night)

    < 20 W
  • Operation temperature range

    -13 °F to 140 °F (-25°C to 60°C)
  • Ingress protection

    TYPE 4X (IP66)
  • Noise emission

    <30 dB(A)
  • Cooling method

    Natural convection
  • Mounting type

    Wall Bracket
  • Max. operation altitude

    13,120 ft (4000 m)
  • Compliance

    UL 1741, UL 1741 SA, UL 1741 SB, IEEE1547-2018&2020, UL 1699B, UL 1998, California Rule 21, HECO Rule 14H(HECO listing pending), NEC 690.12-2020, CAN/CSA C22.2107.1-1, FCC Part 15 Class B
  • Generator support

    Yes; up to 25 kW (with a Solis Hub)


  • AC connection

    1.5 in. knockouts for conduit (x3) on the side and bottom; Spring clamp terminals
  • Interface

    LED indicator lights, Bluetooth/Mobile application
  • Monitoring platform

    SolisCloud (modbus map and API sharing available upon request)
  • Revenue Grade Meter

    Integrated ANSI C12.20 option
  • Communication

    RS485, Cellular, Wi-Fi, Optional: LAN
  • Integrated RSD Transmitter Brands

    See the MLRSD Compatibility Sheet

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