High Voltage Three Phase Hybrid Inverter LTN-10/15/20KHV-3PH

The Liniotech LTN-10/15/20KHV-3PH is a high voltage three phase hybrid inverter for large homes, villas, and small businesses. It delivers 10kW, 15 kW, or 20kW of rated output and runs on 160–700V lithium battery stacks. From one wall-mounted unit, it manages solar, battery, grid, generator and smart loads. As a result, you use more of your own solar power and keep the lights on when the grid goes down.

Bigger properties need bigger answers. Heat pumps, EV chargers, pool pumps and home offices all push three-phase demand up, usually in the evening, when solar has already faded. A 48V system can carry that load, but it does so with heavy cables and higher losses. High-voltage storage does the same job more efficiently. That's why the LTN-KHV-3PH stores your midday surplus, supplies it through the evening, and switches to backup the moment the grid drops.

Why Homeowners and Installers Choose the LTN-KHV-3PH

High voltage means higher efficiency. The inverter works with lithium stacks from 160V to 700V. Higher voltage moves the same power at far lower current, so you get thinner cables, less heat and less wasted energy. On top of that, it reaches 97.6% maximum efficiency, 97.0% Euro efficiency and 99.9% MPPT efficiency.

Up to 26kW of solar input. Each model accepts 30% more PV power than its rated output: 13kW, 19.5kW and 26kW. In other words, you can install a larger array, harvest more on cloudy days and fill your battery faster in winter.

Dual MPPT with a 1,000V ceiling. Two trackers operate across a 150–800V MPPT window, start producing at 180V and accept up to 1,000V. So long strings, split roofs and outbuilding arrays all connect to one inverter.

Handles uneven household loads. Homes never load three phases evenly. The LTN-KHV-3PH carries up to 22A (10K), 30A (15K) or 35A (20K) on a single phase. Because of this, an oven, kettle and EV charger on the same phase won't trip the system.

Generator, smart load and AC coupling built in. A dedicated generator input keeps the property running through long outages while it recharges the battery. The smart load port powers non-essential loads, such as a pool pump or water heater, only when surplus solar is available. And AC coupling adds storage to an existing solar system without replacing its inverter.

Surge power for motors. In off-grid mode, the inverter delivers 1.5x its rated power for 10 seconds. That headroom starts well pumps, heat pumps and air conditioning compressors cleanly.

Compact and quiet. At 30.5kg and 408 × 638 × 237mm, it mounts on a standard wall. It runs below 45dB, and its IP65 enclosure with smart cooling operates from -25°C to 60°C.

Which LTN-KHV-3PH Model Is Right for You?

Size the inverter to the loads you run at the same time, then add headroom. If an EV charger, heat pump or home extension is on your plans, step up one model now. It costs less than a second inverter later. Share your electricity bills or appliance list with us, and the Liniotech team will recommend the right model and battery stack.

How the LTN-KHV-3PH Works

During the day, solar powers the property first. Next, surplus energy charges the battery, and the smart load port can switch on flexible loads to use any excess.

In the evening, the battery takes over. So you avoid buying grid power at peak rates.

During an outage, anti-islanding protection disconnects the property from the grid, and your loads keep running from battery and solar. For extended outages, the generator input takes over and recharges the battery. When the grid returns, the system reconnects automatically.

Protection and Certifications

Every unit integrates PV input lightning protection, anti-islanding and PV reverse polarity protection. It also includes insulation resistance detection and a residual current monitoring unit (RCMU). On the output side, it guards against over-current and short circuits. Type II DC and Type III AC surge protection complete the package.

Certifications and standards

• Grid connection: VDE-AR-N 4105, VDE 0126, EN 50549-1, CEI 0-21, AS4777.2, G98, G99, C10/11, UNE 217002, NBR 16149/16150, IEC 61727 and IEC 62116
• Safety and EMC: IEC/EN 62109-1, IEC/EN 62109-2, and IEC/EN 61000-6-1/2/3/4

These cover grid codes in Germany, Italy, Spain, Belgium, the UK, Australia and Brazil. Still, confirm connection requirements with your network operator before installation.

Pair It With a Liniotech High Voltage Battery

The LTN-KHV-3PH pairs with our high voltage LiFePO4 batteries. It supports lithium only, through a single battery input with 37A charge and discharge.

Stack voltage determines your backup power. At 37A, a 300V stack delivers about 11kW, a 420V stack about 15.5kW, and a 540V stack about 20kW. So to run the 20 kW model at full output from the battery alone, plan a stack of roughly 540V or more. Our team matches the stack voltage and capacity to your backup goals.

Is This the Right Inverter for Your Property?

The LTN-KHV-3PH connects to 220/380V and 230/400V, 50/60Hz three-phase supplies.

• Prefer a 48V battery system: choose the LTN-8/10/12K-3PH-EU.
• Commercial site needing 25kW to 50kW: see the LTN-25/30/40/50KHV-3PH.
• Single-phase supply: go with the LTN-3.6/5/8K-EU.
• US property: US services use a different voltage standard, so browse our US Solar Hybrid Inverter range.

Why Buy From Liniotech

Liniotech supplies solar storage systems, high-voltage batteries and hybrid inverters from Cypress, Texas. Because we source directly from manufacturers, you get strong pricing without a middleman markup. Our team also supports system design before you order and after-sales service once you're up and running.

Every LTN-KHV-3PH inverter carries a 5-year warranty. Register it on our warranty registration, and find an installer through our distribution and installation network.

Upgrade to High Voltage Storage With Liniotech

Your property deserves storage that keeps up with how you actually use power. The Liniotech LTN-10/15/20KHV-3PH high voltage hybrid inverter brings solar, battery, grid and generator together under one efficient controller. You cut bills, protect against outages and stay ready for tomorrow's loads. Order today, or call 800-978-0161 or email sales@liniotech.com, and the Liniotech team will design the right inverter and battery stack for you.

Frequently Asked Questions

What is the difference between a high voltage and a low voltage hybrid inverter?

A low voltage hybrid inverter runs on 48V batteries, while a high voltage model runs on stacks in the hundreds of volts. Higher voltage needs far less current for the same power. That means thinner cables, less heat and higher round-trip efficiency, which matters most on systems of 10kW and above.

Which batteries work with the LTN-KHV-3PH?

It works with high voltage lithium batteries between 160V and 700V, including LiFePO4. It communicates with the battery BMS over RS485 or CAN and adapts its charging automatically. Lead-acid batteries are not supported.

Can I connect a generator?

Yes. The dedicated generator input powers your loads during long outages and charges the battery at the same time. As a result, the generator runs for less time and uses less fuel.

Can I add it to my existing solar system?

Yes. AC coupling lets it work alongside an existing grid-tie inverter. You keep your current panels and add battery storage and backup power.

How many solar panels can I connect?

Maximum PV input is 13kW (10K), 19.5kW (15K) or 26kW (20K). With 550W panels, that's roughly 23, 35 or 47 panels. Each string must sit within the 150–800V MPPT range. Single-string trackers accept up to 20A, while two-string trackers share 26A, so check your module's operating current when planning the layout.

How long will it power my home in an outage?

It depends on battery capacity and load. For example, a 20kWh battery running a 4kW average load lasts roughly 4 to 4.5 hours. A larger stack, or the generator input, extends that further.

Is it approved for UK grid connection?

The inverter holds G98 and G99 certification. The 10K model's rated current sits under G98's 16A-per-phase limit. However, the 15K and 20K exceed it, so they go through the G99 process with your network operator.

Can I install it outdoors?

Yes. The IP65 enclosure protects against dust and water jets, and it operates from -25°C to 60°C. Output derates above 45°C, so a shaded wall gives the best results.

What warranty is included?

Every model includes a 5-year warranty. Register your inverter on the Liniotech warranty page after installation to activate it.