Solis S6-EH3P(12-20)K-H Three Phase High Voltage Solar Energy Storage Inverter
- Category: Solis Hybrid Inverter
- Features
Product Description
S6-EH3P(12-20)K-H
The S6-EH3P(12-20)K-H series is a high-performance three-phase hybrid energy storage inverter designed for large residential and small commercial photovoltaic (PV) energy storage systems. Combining advanced power conversion technology, flexible energy management, and reliable backup power capability, this inverter provides an efficient solution for maximizing solar energy utilization, reducing energy costs, and ensuring stable power supply.
Designed for complex rooftop PV applications, the S6-EH3P(12-20)K-H series features a 4 MPPT design, enabling efficient energy harvesting from multiple roof orientations and PV arrays with different installation conditions. Its intelligent MPPT tracking technology improves system performance and optimizes solar generation even in challenging rooftop environments.
The inverter supports generator integration and parallel operation of multiple units, offering greater system scalability and flexibility for larger energy storage projects. With multiple operating modes and flexible load management capabilities, it can seamlessly adapt to various residential and commercial energy needs.
Equipped with UPS-level fast switching capability and a powerful backup overload capacity of up to 160% for 10 seconds, the S6-EH3P(12-20)K-H series ensures reliable power supply during grid outages or unstable grid conditions. It supports three-phase unbalanced loads and half-wave loads, providing enhanced compatibility and stable operation for a wide range of electrical appliances and equipment.
With high efficiency, intelligent energy management, and robust safety features, the S6-EH3P(12-20)K-H series is an ideal choice for modern solar energy storage systems, delivering reliable, flexible, and future-ready energy solutions for homes and small businesses.
Key Features
Smart Energy Management
Intelligent energy management with AI-based algorithms to optimize battery charging and discharging according to TOU (Time-of-Use) electricity tariffs, helping users reduce energy costs and improve energy efficiency.
Seamless integration with VPP (Virtual Power Plant) and EMS (Energy Management System) platforms, enabling advanced energy scheduling, monitoring, and optimization.
Built-in SG Ready heat pump control function for smart energy coordination and improved household energy utilization.
Supports multiple energy management modes, allowing flexible operation based on solar generation, grid conditions, electricity prices, and user energy requirements.
High Performance & Reliable Power Supply
Supports three-phase unbalanced output, allowing up to 40% of rated inverter power per phase in a single system, ensuring stable operation for different types of loads.
Supports up to 160% PV oversizing capacity, maximizing solar energy harvesting and improving system return on investment.
Ultra-fast switching time of less than 10ms, providing UPS-level backup power protection for critical loads.
Designed for reliable operation under various load conditions, including three-phase unbalanced loads and complex power demands.
High-efficiency power conversion technology ensures stable and optimized energy performance.
Flexible & Scalable Energy Storage Solution
Compatible with mainstream lithium-ion battery systems, providing flexible battery selection for different application scenarios.
Supports parallel connection of multiple inverters to expand system capacity and meet growing energy demands.
Supports AC coupling solutions, enabling easy integration with existing solar PV systems and retrofit energy storage projects. Flexible system architecture suitable for large residential, villa, and small commercial energy storage applications.
Simple & Fast Installation & Configuration
Equipped with a 7-inch LCD touchscreen display, providing an intuitive interface for system monitoring, parameter configuration, and operation management.
Bluetooth app support enables quick commissioning, convenient setup, and remote system configuration.
User-friendly design simplifies installation and maintenance, reducing setup time for installers.
Intelligent monitoring functions provide real-time system status and energy performance insights.
Technical Specifications
| Models | 12K | 15K | 20K | |
| Input DC (PV side) | Recommended max. PV array size | 24 kW | 30 kW | 40 kW |
| Max. usable PV input power | 19.2 kW | 24 kW | 32 kW | |
| Max. input voltage | 1000 V | |||
| Rated voltage | 600 V | |||
| Start-up voltage | 160 V | |||
| MPPT voltage range | 200 - 850 V | |||
| Max. input current | 4 × 20 A | 4 × 20 A | 4 × 30 A | |
| Max. short circuit current | 4 × 30 A | 4 × 30 A | 4 × 30 A | |
| MPPT number / Max. input strings number | 4/4 | |||
| Battery | Battery type | Li-ion | ||
| Battery voltage range | 120 - 800 V | |||
| Max. charge / discharge power | 12 kW | 15 kW | 20 kW | |
| Max. charge / discharge current | 50 A | |||
| Communication | CAN / RS485 | |||
| Output AC (Grid side) | Rated output power | 12 kW | 15 kW | 20 kW |
| Max. apparent output power | 12 kVA | 15 kVA | 20 kVA | |
| Rated grid voltage | 3/N/PE,220 V / 380 V,230 V / 400 V | |||
| Rated grid frequency | 50 Hz / 60 Hz | |||
| Rated grid output current | 18.2 A / 17.3 A | 22.8 A / 21.7 A | 30.4 A / 28.9 A | |
| Max. output current | 18.2 A / 17.3 A | 22.8 A / 21.7 A | 30.4 A / 28.9 A | |
| Power factor | >0.99 (0.8 leading - 0.8 lagging) | |||
| THDi | < 3% | |||
| Input AC (Grid side) | Input voltage range | 304 - 437 V / 320 - 460 V | ||
| Max. input current | 27.3 A / 26.0 A | 34.2 A / 32.5 A | 45.6 A / 43.3 A | |
| Rated grid frequency | 50 Hz / 60 Hz | |||
| Frequency range | 45 - 55 Hz / 55 - 65 Hz | |||
| Input Generator | Max. input power | 12 kW | 15 kW | 20 kW |
| Max. input current | 18.2 A / 17.3 A | 22.8 A / 21.7 A | 30.4 A / 28.9 A | |
| Rated input frequency | 50 Hz / 60 Hz | |||
| Output AC (Back-up) | Rated output power | 12 kW | 15 kW | 20 kW |
| Max. apparent output power | 1.6 times of rated power,10 s | |||
| Back-up switch time | < 10 ms | |||
| Rated output voltage | 3/N/PE,220 V / 380 V,230 V / 400 V | |||
| Rated frequency | 50 Hz / 60 Hz | |||
| Rated output current | 18.2 A / 17.3 A | 22.8 A / 21.7 A | 30.4 A / 28.9 A | |
| THDv (linear load) | < 3% | |||
| Efficiency | Max. efficiency | 97.70% | ||
| EU efficiency | 97.50% | |||
| BAT charged by PV max. efficiency | 98.50% | |||
| BAT charged / discharged to AC max. efficiency | 97.20% | |||
| Protection | Anti-islanding protection | Yes | ||
| Output over current protection | Yes | |||
| Short circuit protection | Yes | |||
| Integrated AFCI 2.0 | Optional | |||
| Integrated DC switch | Yes | |||
| DC reverse-polarity protection | Yes | |||
| PV over voltage protection | Yes | |||
| Battery reverse protection | Yes | |||
| General Data | Max. allowable phase imbalance (grid & back-up) | 100% | ||
| Max. power per phase (grid & back-up) | 40% rated power | |||
| Dimensions (W × H × D) | 563 × 546 × 250 mm | |||
| Weight | 35.2 kg | |||
| Topology | Transformerless | |||
| Self-consumption (night) | < 25 W | |||
| Operating ambient temperature range | -25 ~ +60℃ | |||
| Relative humidity | 0 - 95% | |||
| Ingress protection | IP66 | |||
| Noise emission (typical) | < 65 dB(A) | |||
| Cooling concept | Intelligent fan-cooling | |||
| Max. operation altitude | 4000 m | |||
| Grid connection standard | EN 50549-1:V10,VDE4105,CEI 0-21,CEI 0-16,NC-RFG TypeB,NRS 097-2-1,LTU-1,G99,PEA | |||
| Safety / EMC standard | IEC/EN 62109-1/-2,IEC/EN 61000-6-1/-2/-3/-4 | |||
| Features | PV connection | MC4 connector | ||
| Battery connection | OT terminal | |||
| AC connection | OT terminal | |||
| Display | 7.0" LCD display & Bluetooth + APP | |||
| Communication | CAN, RS485, Ethernet, Optional: Wi-Fi, Cellular, LAN |
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FAQ:
1. Who are we?
We are based in Anhui, China, start from 2018,sell to Northern Europe(10.00%),Eastern Europe(10.00%),Western Europe(8.00%),Domestic Market(8.00%),Mid East(8.00%),Southern Europe(8.00%),Central America(8.00%),South America(8.00%),North America(8.00%),Africa(6.00%),Eastern Asia(5.00%),Oceania(5.00%),Southeast Asia(5.00%),South Asia(3.00%).There are total about 11-50 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final inspection before shipment;
3.What can you buy from us?
Solar Panels, Solar Inverters, Energy Storage Batteries, Solar Systems
4. why should you buy from us not from other suppliers?
New energy integrated company, more than 10 years experience in PV industry, having complete supply chain for solar modules
inverters and energy storage products. Also, provide the whole system design, development and implementation.


