ATS 20 kW Automatic Transfer Switch for Generators

The ATS 20 kW is an automatic transfer switch (ATS) for 20 kW generators: choose it if your generator is rated 20 kW. For 6–15 kW generators we have a different model, the ATS 6–15 kW. When mains power fails, the ATS 20 kW transfers the load to a generator, solar inverter or UPS within a few milliseconds.

Technical specifications

How the ATS 20 kW differs from the ATS 6–15 kW

Transfer time, interlocks and automatic restore are described identically for both models: only the generator rating and the product code differ. Choose the ATS 20 kW when your generator is rated 20 kW. If you have a 6–15 kW generator, the ATS 6–15 kW is the one to look at. If your rating is different or you are not sure, send us the generator model and Hybrid Energy will check which ATS fits.

What is an ATS switch for a generator used for in a house, office or server room?

• Detached houses with a 20 kW generator
• Photovoltaic systems: switching to energy storage after dark or when the grid supply fails
• Offices and server rooms, to protect critical IT infrastructure

How does an automatic changeover between the grid and a generator work?

The ATS detects a failure of the main grid and transfers the load to an alternative source within a few milliseconds. When grid power returns, the mains supply is restored automatically.

Built-in mechanical and electrical interlocks prevent two energy sources from being switched on at the same time.

Which generators and sources is the ATS 20 kW compatible with?

This ATS is compatible with generators rated 20 kW. The alternative source can be a generator, a solar inverter or a UPS. If you have a specific generator or inverter model, send it to us and Hybrid Energy will check whether it fits.

Who can install and connect an ATS switch?

The ATS must be installed only by a qualified electrician with the relevant certificates.

We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it.

Frequently asked questions

Which generators is the ATS 20 kW compatible with?

The ATS 20 kW is compatible with generators rated 20 kW.

What is the transfer time of the ATS 20 kW?

The ATS 20 kW transfers the load to an alternative source within a few milliseconds.

Does the ATS 20 kW restore grid power by itself?

Yes. When grid power returns, the ATS 20 kW restores the mains supply automatically.

Can the ATS 20 kW connect the grid and the generator at the same time?

No. The ATS 20 kW has built-in mechanical and electrical interlocks that prevent two energy sources from being switched on at the same time.

Is the ATS 20 kW suitable for a solar plant with storage or a UPS?

Yes. The ATS 20 kW can transfer the load not only to a generator but also to a solar inverter or a UPS. In photovoltaic systems it is used to switch to energy storage after dark or when the grid fails.

Who can install the ATS 20 kW?

Only a qualified electrician with the relevant certificates may install the ATS 20 kW. Hybrid Energy selects the equipment, delivers across Lithuania, installs and connects it.

Is the ATS 20 kW suitable for a house?

Yes. The ATS 20 kW suits detached houses with a 20 kW generator.

Is the ATS 20 kW suitable for an office or a server room?

Yes. The ATS 20 kW is used in offices and server rooms to protect critical IT infrastructure, because it transfers the load within a few milliseconds. Hybrid Energy helps you choose a solution for your site.

How does the ATS 20 kW differ from the ATS 6–15 kW?

The ATS 20 kW is for 20 kW generators and the ATS 6–15 kW is for 6–15 kW generators; transfer time, interlocks and automatic restore are described identically.