Contact interface, flush-mounted – 1-channel

Make your already installed pushbutton or switch smart, and control a Homematic IP actuator of your choice. The Homematic IP contact interface - 1-channel enables you to do that.

Make switches and pushbuttons smart in no time at all.

So your house or flat is finished and nothing's missing - or is it? Often, smart applications in the home are not planned from the outset, but then you decide you need them after all. But you don't want to replace the expensive switches or pushbuttons with smart ones - and that's understandable! But how about making your already installed pushbuttons and switches smart without having to replace anything? The Homematic IP contact interface - 1-channel also makes your already installed switch smart and allows you to control your Homematic IP devices.


The intelligent way to switch lighting

Integrate a pushbutton or switch into your smart home system with the contact interface.


Use existing pushbuttons and switches to control all possible functions in the smart home.

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Invisible installation

The very flat design enables you to mount the unit easily so that it's not visible from the outside.


The contact interface can be mounted directly behind the installed switch insert in standard flush-mounted boxes.

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Control heating

Save energy

Use the app

Connect devices together

Homematic IP: Smart living. Simply exciting.

Homematic IP means modern, flexible and secure technology from the European market leader*. Let the advantages of our system win you over, and start living smarter straight away. 

With some smart home providers, you have to make a choice: Do you have everything wired, or do you go fully wireless? Some systems are also hermetically sealed and do not accept devices from other manufacturers. Here at Homematic IP, we have a different approach. We are guided by you!

The Homematic IP app

Configure all the settings for your smart home in the Homematic IP app, and use it to control, regulate and monitor your devices whenever you want – without providing any personal data!
A smart home system is particularly robust, interference-proof and reliable when the devices communicate with each other via wired connections. And data transmission is very fast with cables, too. That all comes together with Homematic IP Wired.

Always here for you and your queries.

Whether you have a question about a product, something isn’t working as you wanted, you’re looking for a specialist partner, or you simply want to give us feedback: we are always here to help.



This is where you’ll find the most important questions and our answers about our smart home solutions.



Have you purchased a Homematic IP product and now have questions about how it works? Our technical support team will be happy to help you.

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Specialist tradespeople

Are you looking for a good specialist tradesperson near you? Simply use the convenient search function here on our website.

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You can get Homematic IP products and good advice all over Germany. Find the right dealer near you here.

Innovations, ideas, impulses: your news

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