Solis S6-EH3P40K-H 40.0kW 3-Phase HV Hybrid Inverter 40kW three-phase hybrid inverter combining solar PV, high-voltage battery, grid and generator in one system for large commercial sites, farms and public-sector facilities. Fast backup changeover and generator compatibility to keep essential loads running during grid outages. Multiple MPPTs with high input current capability, wide voltage window and IP66 rating for demanding UK and overseas environments. The Solis S6-EH3P40K-H is a 40.0kW three-phase high voltage hybrid inverter designed for projects that need dependable on-grid and off-grid operation with substantial battery storage. It supports large PV arrays, high-voltage Li-ion batteries and generator input, with rapid backup switching to protect critical loads during power cuts. This makes it a strong choice for agricultural sites, larger commercial premises, light industrial units and public-sector buildings with three-phase supplies. Key features 40kW three-phase hybrid inverter with 40kVA output for 3/N/PE 380/400V systems, compliant with G99 and other major grid codes. High-voltage Li-ion battery support with high charge / discharge power and CAN/RS485 communication for compatible BMS. High DC input power capability, wide MPPT voltage range and high input current for large, modern PV arrays. Generator-compatible with fast backup switch time and strong surge capability for motor and pump loads. IP66 enclosure, intelligent fan cooling and a wide operating temperature range for tough site conditions. Technical specifications Inverter type and applications Model: Solis S6-EH3P40K-H (S6-EH3P(30–50)K-H series). Type: Three-phase high voltage hybrid inverter, transformerless topology. Typical applications: Larger commercial, agricultural, light industrial and public-sector buildings with three-phase supplies. AC output – grid side Rated AC output power: 40kW. Max. apparent output power: 40kVA. Rated grid voltage: 3/N/PE, typically 230/400V (see datasheet for full range). Rated grid frequency: 50Hz / 60Hz. Rated grid output current: per-phase current as specified in the manufacturer datasheet for the 40kW model. Max. output current: as specified in the S6-EH3P-30–50K-H datasheet. Power factor: greater than 0.99, adjustable 0.8 leading to 0.8 lagging. THDi: low total harmonic distortion at linear load. AC output – backup side Rated backup output power: 40kW. Max. apparent backup power: up to 2 × rated power for short durations (see datasheet for exact timing). Backup output voltage: 3/N/PE, matching grid nominal voltage. Backup frequency: 50Hz / 60Hz. Backup rated output current: as specified in the datasheet for the 40kW model. Backup switch time: typically under 10ms for UPS-style transfer. Max. allowable phase imbalance: supports high phase imbalance on grid and backup ports. AC input – grid and generator Grid input voltage range: wide three-phase range suitable for European grids (see datasheet for exact values). Max. grid input current: as specified for 40kW model. Rated grid frequency: 50Hz / 60Hz. Frequency range: typical utility ranges around nominal frequency. Generator max. input power: sized to support 40kW backup capability (see datasheet for recommended generator rating). Generator max. input current and frequency: per manufacturer specification. PV input (DC side) Recommended max. PV array size: high DC-to-AC oversizing ratio as stated in S6-EH3P(30–50)K-H datasheet for 40kW unit. Max. usable PV input power: as specified for the 40kW model. Max. DC input voltage: 1000V. Rated DC voltage: according to datasheet for optimum MPPT operation. Start-up voltage: as per S6-EH3P-30–50K-H datasheet. MPPT voltage range: wide window to suit long strings (see datasheet for exact range). Number of MPPTs / strings: multiple MPPT trackers with several inputs, as specified for 40kW model. Max. input current per MPPT: high current capability for modern high-output modules. Max. short-circuit current per MPPT: as per manufacturer datasheet. PV connection: MC4 or MC4-compatible connectors. Integrated DC switch: yes. Battery input Battery type: Li-ion high voltage with compatible BMS. Battery voltage range: wide HV range as specified in S6-EH3P(30–50)K-H datasheet. Max. charge / discharge power: up to 40kW, subject to battery capability and configuration. Max. charge / discharge current: as specified for the 40kW model. Battery communication: CAN / RS485. Battery connection: OT terminals. Efficiency Max. inverter efficiency: high peak efficiency in the upper 90% range. European efficiency: high EU efficiency as per datasheet. PV to battery max. efficiency: high round-trip efficiency within the hybrid path. Battery to AC max. efficiency: high conversion efficiency for discharge to loads. Protection and compliance Anti-islanding, output overcurrent, short-circuit, DC reverse-polarity, PV overvoltage and battery reverse protection. Integrated AFCI 2.0 (arc-fault protection) optional or standard as per datasheet. Ingress protection rating: IP66. Grid standards: EN 50549, G99 and other regional codes listed in the UK / EU datasheet. Safety / EMC standards: IEC/EN 62109 series and IEC/EN 61000-6-1/-2/-3/-4. User interface and communications Display: large LCD display with local control keys and status indicators. Communications: CAN, RS485, Ethernet; optional Wi-Fi, cellular and LAN dataloggers for remote monitoring. Mechanical and environmental Dimensions (W × H × D): as specified in S6-EH3P-30–50K-H datasheet for 40kW unit. Weight: as specified for the 40kW model. Self-consumption (night): low standby consumption. Operating temperature range: typically −25 to +60°C with possible derating at higher temperatures. Relative humidity: 0–95% (non-condensing). Cooling: intelligent fan cooling. Typical noise emission: within typical plant-room noise thresholds (see datasheet for dB(A) value). Max. operating altitude: up to 2000m, subject to any derating conditions. Shipping and UK expert support Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, please contact us on +44 2080640335 or [email protected] for a quote. This is a fixed, hard-wired three-phase hybrid inverter and is not supplied as a plug-and-play product. Energian recommends installation and commissioning by a suitably qualified electrician or trusted installer partner to meet UK wiring regulations and grid-connection rules. UK expert support is available – contact us by phone, email or live chat, or visit our office for in-person consultation on system design, battery pairing, generator integration and DNO applications. Documents available for download Solis S6-EH3P(30–50)K-H Datasheet – GBR Solis S6-EH3P Series Installation and User Manual
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