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Solis S6-EH3P(8-12)K-LV-H Three Phase High Voltage Energy Storage Inverter
The Solis S6-EH3P(8-12)K-LV-H Three Phase High Voltage Energy Storage Inverter is designed to provide efficient solar energy management for residential and commercial applications. Compatible with high-voltage lithium-ion batteries, this hybrid inverter helps manage solar power, battery storage, grid electricity, and backup power.
During the day, the inverter converts solar energy into usable electricity for connected loads while supporting battery charging. Stored battery energy can be used to supply connected loads when solar generation is insufficient or during grid interruptions, depending on system configuration and available battery capacity.
Featuring generator compatibility, dual backup ports, peak shaving support, and support for unbalanced and half-wave loads, the Solis S6-EH3P(8-12)K-LV-H provides flexible energy management for modern three-phase solar systems.
Available in 8kW, 10kW, and 12kW models, this inverter supports high-voltage batteries with a voltage range of 120V to 800V. Its four MPPT trackers help manage solar PV input, while intelligent fan cooling and IP66 protection support reliable operation in suitable installation environments.
Key Features
- Available in 8kW, 10kW, and 12kW models.
- Compatible with high-voltage lithium-ion batteries.
- Generator-compatible design to help extend backup duration during grid outages.
- Supports dual backup ports for intelligent control of critical and non-critical loads.
- Compatible with SG heat pumps.
- Supports maximum PV input current of up to 20A per input, depending on model configuration.
- Supports AC voltage detection for grid and generator output to help prevent reverse current from the grid from damaging generators.
- Supports Peak Shaving features.
- Supports unbalanced and half-wave loads on both the grid and backup ports.
- Four MPPT trackers for solar energy management.
- High-voltage battery support from 120V to 800V.
- Backup switching time of less than 10ms.
- Integrated DC switch and multiple protection functions.
- 7.0-inch LCD display, Bluetooth, and app-based monitoring.
- IP66 ingress protection rating.
- Intelligent fan-cooling system.
Technical Specifications
1. Model and Solar PV Input
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Model | S6-EH3P8K-LV-H | S6-EH3P10K-LV-H | S6-EH3P12K-LV-H |
| Recommended maximum PV array size | 16kW | 20kW | 24kW |
| Maximum usable PV input power | 12.8kW | 16kW | 19.2kW |
| Maximum input voltage | 1000V | 1000V | 1000V |
| Rated voltage | 600V | 600V | 600V |
| Start-up voltage | 160V | 160V | 160V |
| MPPT voltage range | 200–850V | 200–850V | 200–850V |
| Maximum input current | 4 × 16A | 4 × 20A | 4 × 20A |
| Maximum short-circuit current | 4 × 24A | 4 × 30A | 4 × 30A |
| MPPT number / maximum input strings | 4 / 4 | 4 / 4 | 4 / 4 |
2. Battery Specifications
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Battery type | Li-ion | Li-ion | Li-ion |
| Battery voltage range | 120–800V | 120–800V | 120–800V |
| Maximum charge / discharge power | 8kW | 10kW | 12kW |
| Maximum charge / discharge current | 50A | 50A | 50A |
| Communication | CAN / RS485 | CAN / RS485 | CAN / RS485 |
3. AC Output – Grid Side
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Rated output power | 8kW | 10kW | 12kW |
| Maximum apparent output power | 8kVA | 10kVA | 12kVA |
| Rated grid voltage | 3/(N)/PE, 127V / 220V, 133V / 230V | 3/(N)/PE, 127V / 220V, 133V / 230V | 3/(N)/PE, 127V / 220V, 133V / 230V |
| Rated grid frequency | 50Hz / 60Hz | 50Hz / 60Hz | 50Hz / 60Hz |
| Rated grid output current | 20.1A | 25.1A | 30.1A |
| Maximum output current | 20.1A | 25.1A | 30.1A |
| Power factor | >0.99 (0.8 leading–0.8 lagging) | >0.99 (0.8 leading–0.8 lagging) | >0.99 (0.8 leading–0.8 lagging) |
| Total harmonic distortion (THDi) | <3% | <3% | <3% |
4. AC Input – Grid Side
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Input voltage range | 176–253V / 184–265V | 176–253V / 184–265V | 176–253V / 184–265V |
| Maximum input current | 30.1A | 37.7A | 45.2A |
| Rated grid frequency | 50Hz / 60Hz | 50Hz / 60Hz | 50Hz / 60Hz |
| Frequency range | 45–55Hz / 55–65Hz | 45–55Hz / 55–65Hz | 45–55Hz / 55–65Hz |
5. Generator Input
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Maximum input power | 8kW | 10kW | 12kW |
| Maximum input current | 20.1A | 25.1A | 30.1A |
| Rated input frequency | 50Hz / 60Hz | 50Hz / 60Hz | 50Hz / 60Hz |
6. AC Output – Backup Side
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Rated output power | 8kW | 10kW | 12kW |
| Maximum apparent output power | 2 times rated power for 10 seconds | 1.6 times rated power for 10 seconds | 1.6 times rated power for 10 seconds |
| Backup switching time | <10ms | <10ms | <10ms |
| Rated output voltage | 3/(N)/PE, 127V / 220V, 133V / 230V | 3/(N)/PE, 127V / 220V, 133V / 230V | 3/(N)/PE, 127V / 220V, 133V / 230V |
| Rated frequency | 50Hz / 60Hz | 50Hz / 60Hz | 50Hz / 60Hz |
| Rated output current | 20.1A | 25.1A | 30.1A |
| Total harmonic distortion at linear load (THDv) | <2% | <2% | <2% |
7. Efficiency
| Specification | 8K | 10K | 12K |
|---|---|---|---|
| Maximum efficiency | 96.70% | 96.70% | 96.70% |
| EU efficiency | 96.39% | 96.39% | 96.39% |
| Maximum battery charging efficiency from PV | 96.23% | 96.23% | 96.23% |
| Maximum battery charge/discharge-to-AC efficiency | 96.43% | 96.43% | 96.43% |
8. Protection Features
| Protection | Specification |
|---|---|
| Anti-islanding protection | Yes |
| Output overcurrent protection | Yes |
| Short-circuit protection | Yes |
| Integrated AFCI 2.0 | Optional |
| Integrated DC switch | Yes |
| DC reverse-polarity protection | Yes |
| PV overvoltage protection | Yes |
| Battery reverse protection | Yes |
9. General Specifications
| Specification | Details |
|---|---|
| Maximum allowable phase imbalance (grid and backup) | 100% |
| Maximum power per phase (grid and backup) | 50% of rated power for 8K; 40% of rated power for 10K and 12K |
| Dimensions (W × H × D) | 563 × 546 × 250mm |
| Weight | 35.2kg |
| Topology | Transformerless |
| Night-time self-consumption | <25W |
| Operating ambient temperature range | −25°C to +60°C |
| Relative humidity | 0–95% |
| Ingress protection | IP66 |
| Noise emission (typical) | <65dB(A) |
| Cooling concept | Intelligent fan-cooling |
| Maximum operating altitude | 2000m |
10. Standards and Compliance
| Specification | Details |
|---|---|
| Grid connection standards | EN 50549-1/-10, VDE4105, REN342 |
| Safety / EMC standards | IEC/EN 62109-1/-2, IEC/EN 61000-6-1/-2/-3/-4 |
11. Connections and Monitoring
| Specification | Details |
|---|---|
| PV connection | MC4 connector |
| Battery connection | OT terminal |
| AC connection | OT terminal |
| Display | 7.0-inch LCD display, Bluetooth, and app |
| Communication | CAN, RS485, Ethernet |
| Optional communication | Wi-Fi, Cellular, LAN |
12. Warranty
Please confirm the applicable warranty period with the supplier or manufacturer before purchase.
Additional Information
| Attribute | Details |
|---|---|
| Product type | Solar Hybrid Energy Storage Inverter |
| Brand | Solis |
| Series | S6-EH3P(8-12)K-LV-H |
| Available models | 8kW, 10kW, 12kW |
| Phase | Three-phase |
| Battery type | Li-ion |
| Battery voltage range | 120–800V |
| Rated grid voltage | 127V / 220V, 133V / 230V |
| Frequency | 50Hz / 60Hz |
| Protection rating | IP66 |
Important Note
This product information is based on the preliminary Solis S6-EH3P(8-12)K-LV-H datasheet. Specifications may be subject to change in the final product documentation. Solar system performance and backup operation depend on PV array sizing, battery capacity, connected loads, generator compatibility, installation conditions, and system configuration. Confirm the selected model's specifications, battery compatibility, grid requirements, and warranty with the supplier before installation.
Solar system performance and the ability to operate without grid electricity depend on system sizing, battery capacity, connected loads, installation conditions, and configuration. Please confirm the selected model's specifications and compatibility with your battery and electrical system before installation.