Solis S6-EH3P(12-20)K-H Three Phase High Voltage Solar Energy Storage Inverter

  • Category: Solis Hybrid Inverter
  • Features
  • The S6-EH3P(15-20)K-H is a three-phase hybrid energy storage inverter for large residential and small commercial PV systems. Featuring 4 MPPT, intelligent energy management, VPP/EMS integration, UPS-level backup, and flexible battery compatibility, it delivers efficient, reliable, and scalable solar energy storage solutions.

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

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.