DAH Solar 12 kW Three-Phase 48 V Hybrid Inverter – DHN-LVEH3P12K-EU-G1

DAH Solar 12 kW three-phase hybrid inverter for 48 V batteries

DAH Solar DHN-LVEH3P12K-EU-G1 is a 12 kW three-phase hybrid inverter designed to combine a solar power system, low-voltage battery storage, the utility grid and backup power in one energy management system.

It is suitable for residential buildings, farms, workshops, smaller commercial properties and other systems where increased self-consumption, battery storage and backup power during grid outages are required.

Main inverter advantages

• 12 kW rated three-phase output power,
• 40–60 V DC low-voltage battery system,
• maximum battery charging current up to 240 A,
• maximum battery discharging current up to 240 A,
• maximum recommended PV array power of 19.2 kWp,
• two independent MPPT trackers,
• three PV string inputs in a 2 + 1 configuration,
• support for compatible lithium batteries with BMS communication,
• support for properly configured lead-acid batteries,
• separate grid, backup load and generator connections,
• support for zero-export and export limitation,
• time-based battery charging and discharging,
• grid peak-shaving function,
• generator input and AC coupling support,
• parallel operation of multiple inverters,
• colour LCD display,
• remote monitoring via the included data acquisition stick,
• CAN, RS485 and Modbus communication,
• IP65 enclosure protection.

Two MPPT trackers and support for up to 19.2 kWp of solar panels

The inverter supports a maximum recommended PV array capacity of up to 19.2 kWp. It is equipped with two independent MPPT trackers and three PV string connections arranged in a 2 + 1 configuration.

Two separate MPPT inputs allow two groups of solar panels with different orientations, roof pitches or sunlight conditions to be connected. The maximum permitted PV input voltage is 800 V, while the operating MPPT range is 200–650 V.

Low-voltage battery system from 40 to 60 V

DAH Solar DHN-LVEH3P12K-EU-G1 is designed for low-voltage battery storage systems operating between 40 and 60 V DC. It supports compatible lithium batteries with BMS communication via CAN or RS485.

The maximum battery charging and discharging current is 240 A. The actual current must always be adjusted to the battery specification, BMS limits, cable cross-section, protection devices and battery circuit breaker.

For suitable storage solutions, please visit our range of batteries for solar systems and energy storage.

Backup power during a grid outage

A separate backup output allows selected electrical loads to remain powered during a utility grid outage, provided that the system includes a suitable battery and properly designed electrical protection.

The backup output can supply important loads such as lighting, refrigerators, heating controls, communication equipment, pumps and other appropriately sized appliances. Starting current must be considered for motors, compressors and other loads with high inrush current.

Flexible operating modes

The inverter supports several energy management modes. Depending on the system requirements, priority can be given to load supply, battery charging, grid export or limiting power imported from the utility grid.

• Load First: solar energy supplies the loads first, while excess energy charges the battery.
• Battery First: solar energy charges the battery as a priority.
• Time of Use: charging and discharging are controlled according to configured time periods.
• Zero Export: limits or prevents electricity from being exported to the grid.
• Peak Shaving: limits the maximum power imported from the grid.
• Selling First: prioritises exporting available surplus electricity where permitted.

Generator, smart load output and AC coupling

The GEN connection can be configured as a generator input, a smart output for selected loads or an AC coupling connection for an existing grid-tied solar inverter.

This provides flexible options for upgrading existing solar installations and for adding an additional power source where the utility grid is unreliable or unavailable.

Energy flow measurement and export limitation

The package includes three CT current transformers, one for each phase. They measure the energy flow between the building and the utility grid and enable correct operation of the export-limitation function.

The CT sensors must be installed in the correct direction and assigned to the correct phases. Incorrect installation may cause inaccurate measurements and improper inverter power regulation.

Remote monitoring and communication

The included LSW-5B3153 data acquisition stick enables remote monitoring through the supported manufacturer's web or mobile platform.

The inverter also supports CAN, RS485 and Modbus communication. Integration with third-party monitoring or automation systems depends on the availability of communication registers, firmware version and the selected integration method.

Package contents

• 1 × DHN-LVEH3P12K-EU-G1 three-phase hybrid inverter,
• 1 × wall-mounting bracket,
• 1 × LSW-5B3153 data acquisition stick,
• 3 × CT current transformers,
• 1 × communication cable with two RJ45 connectors,
• 1 × battery temperature sensor,
• 1 × ferrite ring,
• 3 × positive PV connectors,
• 3 × negative PV connectors,
• 1 × PV connector tool,
• mounting screws and installation accessories,
• 1 × user manual,
• 1 × packing list.

Technical specifications

Complete solar and battery storage system

To build a complete energy system, please also visit our range of solar panels and batteries for energy storage.

Other models and solutions are available in our inverters category.

Important information before purchase

The inverter must be installed, connected and configured by a suitably qualified person. Before purchase, battery compatibility and BMS protocol, solar panel voltage and string configuration, electrical system design and local distribution network requirements must be verified.

The ability to export electricity to the public grid depends on local regulations, approvals, distribution network operator requirements and valid certification for the specific inverter version.

For assistance with selecting batteries, solar panels or designing your system, call us on +386 40 281 966 or email us at info@herkules.si.