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GY-S 3312K PV storage inverter cabinet structure design

GY-S 3312K three-phase energy storage inverter side view

GY-S 3312K commercial energy storage system installation

GY-S 3312K energy storage inverter interface details

GY-S 3312K all-in-one PV storage energy solution

GYS 3312K-15/30KWH Three-phase All-in-one PV-storage Inverter/Controller

GYS 3312K is a three-phase all-in-one PV storage inverter/controller integrating solar MPPT, battery management, inverter conversion and intelligent energy management. Supporting 15kWh and 30kWh LiFePO4 battery configurations, it enables efficient solar energy utilization, grid-connected operation and backup power supply. With wide PV input range, 98% PV efficiency, multiple protection functions and intelligent EMS communication, it provides a reliable energy storage solution for residential, commercial and small industrial applications.

•All-in-one Energy Solution — integrates PV MPPT, battery management, inverter and EMS functions into a single compact system.
•Flexible Storage Capacity — available with 15kWh and 30kWh LiFePO4 battery configurations for different energy requirements.
•High PV Efficiency — achieves up to 98% photovoltaic conversion efficiency for optimized solar energy utilization.
•Wide PV Input Range — supports up to 24kW PV input power, 1000V maximum PV voltage and 200-800V MPPT operating range.
•Reliable Backup Power — supports grid-connected and off-grid operation with automatic energy switching for stable power supply.
•Comprehensive Protection — integrated with PV reverse polarity, insulation resistance, residual current, overcurrent, short-circuit and overvoltage protection.
•Intelligent Energy Management — supports RS485, Wi-Fi and APP monitoring for smart system operation and remote management.

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Features

Energy storage can be used in conjunction with PV modules to charge itself using solar energy. When a grid fault or power outage occurs, it automatically switches to backup power, utilizing the stored electricity to continuously provide stable and reliable power support for lighting systems, electrical equipment, etc. It features low maintenance costs, low energy consumption, and low environmental noise.

Wide photovoltaic (PV) input range
CT-based anti-backflow protection
Wide grid (AC) input range
USB / RS485 / dry contact communication
Supports WiFi + APP monitoring
Supports lithium battery BMS communication and parallel connection

Technical Parameter

Product Specifications	GYS 3312K-15KWH	GYS 3312K-30KWH
Grid-tied
Peak power	13200VA	13200VA
Rated output voltage	380/400V	380/400V
Rated output frequency	50/60Hz	50/60Hz
Maximum output current	20A	20A
Off-grid
Rated output power	12000W	12000W
Overload protection	>200%,15sec	>200%,15sec
Rated output voltage	380/400V	380/400V
Rated output frequency	50/60Hz	50/60Hz
Rated output current	20A	20A

User Manual

GYS 3312K-15/30KWH Three-phase All-in-one PV-storage Inverter/Controller

Frequently Asked Questions About GYS 3312K Three-phase All-in-one PV Storage Inverter

What is the GYS 3312K Three-phase All-in-one PV Storage Inverter?

The GYS 3312K is a three-phase all-in-one PV storage inverter integrating photovoltaic power generation, battery energy storage, grid connection and backup power functions. It combines a high-efficiency solar inverter, battery charger and energy management system into one compact solution. Supporting both grid-tied and off-grid operation, it provides stable and intelligent power management for residential, commercial and small industrial energy storage applications.

What are the main functions of the GYS 3312K?

The GYS 3312K provides comprehensive energy management functions including solar power conversion, battery charging and discharging control, grid interaction and emergency backup power supply. It intelligently manages energy flow between PV panels, batteries, loads and the utility grid to maximize renewable energy utilization and ensure reliable power availability.

What battery type and capacity does the GYS 3312K support?

The GYS 3312K is compatible with LiFePO4 battery systems and adopts a 51.2Vdc battery architecture. It is available in different energy storage configurations, including 15.36kWh and 30.72kWh capacity options. The system supports high-current charging and discharging, providing efficient energy storage and flexible capacity selection for different application scenarios.

Can the GYS 3312K operate in off-grid mode?

Yes. The GYS 3312K supports independent off-grid operation and can provide continuous power supply when the utility grid fails. In off-grid mode, it delivers stable three-phase AC output with 380/400V voltage and 50/60Hz frequency, making it suitable for backup power, remote areas, microgrids and applications requiring high power reliability.

What are the PV input specifications of the GYS 3312K?

The GYS 3312K supports high-voltage PV input with a maximum PV input voltage of 1000V and an MPPT voltage range of 200V to 800V. Equipped with two MPPT channels, it supports up to 24kW photovoltaic input power, improving solar energy harvesting efficiency under different installation conditions and roof orientations.

What efficiency and protection features does the GYS 3312K provide?

The GYS 3312K achieves high conversion efficiency with a maximum PV efficiency of up to 98% and battery efficiency of 94.5%. It integrates multiple protection functions including PV reverse polarity protection, PV insulation resistance detection, residual current protection, output overcurrent protection, short circuit protection and overvoltage protection to ensure safe and reliable system operation.

What applications is the GYS 3312K suitable for?

The GYS 3312K is designed for various solar energy storage applications including residential energy storage systems, commercial buildings, small industrial facilities, remote power systems, microgrids and backup power projects. Its integrated design simplifies installation while providing flexible energy management and reliable power supply.

Does the GYS 3312K support remote monitoring and communication?

Yes. The GYS 3312K supports intelligent monitoring and communication through RS485, CAN and optional Wi-Fi functions. Users can monitor PV generation, battery status, charging and discharging conditions and system operating data in real time, enabling efficient energy management and convenient system maintenance.

What are the installation environment requirements for the GYS 3312K?

The GYS 3312K is designed for reliable operation in various environmental conditions. It supports an operating temperature range from -25℃ to +60℃, relative humidity from 0% to 95%, and operation at altitudes up to 4000m with derating above 2000m. The intelligent forced air cooling system ensures stable performance during long-term operation.

What advantages does the GYS 3312K offer compared with traditional PV inverters?

Compared with conventional PV inverters, the GYS 3312K integrates photovoltaic conversion, battery storage management and backup power functions into a single device. This all-in-one design reduces system complexity, improves installation efficiency and provides greater flexibility for energy management. With high efficiency, intelligent control and reliable backup capability, it is an ideal solution for modern solar-plus-storage applications.

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