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Solis S6-EH3P12K-LV-ND-H 3-Phase Hybrid Inverter (12kW 3x230V)

€2.132,02 incl. 21% VAT
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The Solis S6-EH3P12K-LV-ND-H is a three-phase hybrid inverter with a rated output power of 12.00 kW, specifically engineered for 3×230V grid configurations without a neutral conductor. With four independent MPPT trackers, support for phase imbalance control and a peak efficiency of 97.70%, this system delivers maximum flexibility for residential projects where standard 400V solutions are technically not applicable.

  • 12.00 kW rated output power: With support for 19.20 kWp DC input (160% oversizing) and 4 independent MPPT trackers.
  • Phase imbalance control: Up to 100% unbalanced output — up to 40% of rated power assignable per phase.
  • Backup transfer time <10ms: Critical loads remain fully operational during grid outages.
  • IP66-certified: Peak efficiency of 97.70% in a robust outdoor enclosure.

Suitable for

  • Residential projects on 3×230V grid configurations without a neutral conductor
  • Installations with phase imbalance where a standard 400V grid is unavailable
  • Hybrid systems with low-voltage batteries from Pylontech, BYD or Dyness
  • Installations with high PV capacity via 160% oversizing (19.20 kWp)
  • Systems requiring backup power with fast transfer switching (<10ms)

Solis S6-EH3P12K-LV-ND-H — specifications and benefits

  • Phase imbalance control: Up to 100% unbalanced output — essential for complex grid environments without a neutral conductor and for maximum stability per phase.
  • Peak efficiency 97.70%: Minimises conversion losses for optimal system efficiency.
  • CAN and RS485 communication: Seamless integration with low-voltage battery systems from Pylontech, BYD and Dyness.
  • SolisCloud AI optimisation: Dynamic pricing integration increases self-consumption to approximately 70%.
Specification Value
Brand & model Solis S6-EH3P12K-LV-ND-H
Rated AC power 12.00 kW
Max. PV input 19.20 kWp (160% oversizing)
Peak efficiency 97.70%
MPPT trackers / strings 4 / 4
Backup transfer time <10ms
Grid configuration 3×230V (phase-to-phase, no neutral conductor)
Protection rating IP66
Dimensions (W × D × H) 563 × 235 × 546 mm
Weight 32.6 kg
Certifications IEC 62109-1/-2, EN 50549, C10/11
Important, grid configuration must be verified before installation: This "ND-H" model is exclusively suitable for 3×230V (phase-to-phase) grids without a neutral conductor and must not be operated on standard 400V three-phase electrical infrastructures. Verification of the local grid structure by a certified installer is mandatory prior to installation.
Download Datasheet Download Manual
What is included in the Solis S6-EH3P12K-LV-ND-H package?
Component Specification
Hybrid inverter 1× Solis S6-EH3P12K-LV-ND-H
Mounting bracket 1×
MC4 PV connector sets 4×
CT sensors 3× with wiring
Smart meter (Eastron) 1×
WiFi/LAN datalogger stick 1×
Which battery systems are compatible with the Solis S6-EH3P12K-LV-ND-H?

The inverter is compatible with low-voltage lithium batteries communicating via CAN or RS485. Validated systems include solutions from Pylontech, BYD and Dyness. The inverter optimises energy transfer based on current grid tariffs and battery status. Always refer to the most current compatibility list in the datasheet and verify the firmware version before installation.

How does the phase imbalance control of the Solis S6-EH3P12K-LV-ND-H work?

The S6-EH3P12K-LV-ND-H supports up to 100% unbalanced output — up to 40% of rated power can be assigned per phase. This is essential for 3×230V grid configurations without a neutral conductor, where the load per phase can vary significantly. The phase imbalance control ensures maximum stability and efficiency per phase, regardless of how consumption is distributed across the three phases.

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Solis S6-EH3P12K-LV-ND-H 3-Phase Hybrid Inverter (12kW 3x230V) – General installation or product video