Könner & Söhnen Automatic Transfer Switch - KS ATS 4/25

The Könner & Söhnen KS ATS 4/25 is an automatic transfer switch designed to manage power transitio...

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Automatic Transfer Switch (Ats) Ks Ats 4/25 Inverter Unit For 230V And 400V Consumers 4260405365678

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Product Information

Full details

The Könner & Söhnen KS ATS 4/25 is designed for homeowners and small business operators seeking a seamless transition between grid power and backup generation. This automatic transfer switch provides a critical safety net by handling power swaps during outages without manual intervention, though users should note it is exclusively engineered for specific compatibility with the KS 5500iES ATSR inverter generator.

All features

Model Part Number	KS ATS 4/25
Brand	KÃ¶nner & SÃ¶hnen

Extended Product Information

FAQs

Can I use this with a different generator brand?

No, the KS ATS 4/25 is specifically designed to work only with the Könner & Söhnen KS 5500iES ATSR.

What happens to the generator battery during long idle periods?

The ATS keeps the generator battery charged automatically as long as the switch is connected to the grid.

Is professional installation required?

Yes, because this device interfaces directly with your home's main electrical panel, a certified electrician is necessary for installation.

Does this switch work for 400V systems?

Yes, the unit is capable of managing power transitions in both 230V and 400V systems.

What is the purpose of the emergency switch?

The emergency switch allows for the immediate manual disconnection of power in the event of an electrical fault or maintenance requirement.

Troubleshooting

Generator fails to start during a power outage.

Check that the 7-pin control cable is securely connected at both ends and verify the generator has sufficient fuel and battery charge.

The unit does not switch back to grid power.

Verify that the main electrical grid voltage has stabilized and check for any tripped breakers within the ATS distribution panel.

Pros and Cons

Pros

Fully automated operation eliminates the need for manual startup during emergencies.
Ensures generator battery is always maintained and ready.
Robust build quality suitable for both residential and light commercial use.
Includes a dedicated emergency safety switch for user protection.

Cons

Compatibility is strictly limited to the KS 5500iES ATSR inverter model.
Installation requires professional electrical knowledge for grid integration.
Requires a specific 7-pin cable connection which may limit third-party generator use.

Setup, Compatibility & Care

Installation must be performed by a licensed electrician to ensure compliance with local electrical codes. The ATS unit is designed solely for use with the Könner & Söhnen KS 5500iES ATSR inverter generator; it will not function with other models. To maintain the unit, keep the enclosure free of dust and moisture. Periodically inspect the 7-pin control cable for signs of wear or oxidation to ensure that the communication signal between the generator and the switch remains uninterrupted.