Dry Make and break contact

I’m looking for a zigbee on/off switch to switch in my boiler (ketel) but when I see zigbee relay devices they all seem to have power on the make or break entry’s? I just want a device ( by battery or 230v) that makes the connectiin in the boiler. Whaf device can do this for me?

Tip is to use a “contactor” https://en.wikipedia.org/wiki/Contactor with any “smart” relay device you want.

https://www.google.com/search?q=Contactor&tbm=shop

Depending on controlling power needed for contactor you could use it with ex. relays discussed here:

https://community.home-assistant.io/t/ewelink-zigbee-rf-2ch-relay-module-working-with-zha/384069/

https://zigbee.blakadder.com/BTicino_FC80CC.html

Like this device? Ehy would i still need a relay? If this would work?

Yes but I actually meant that you should use a normal “dumb” non-Zigbee contactor in combination with any other Zigbee relay device and just use the Zigbee to control the “dumb” non-Zigbee contactor.

That is, use a non-smart contactor matching requirements in combination with any Zigbee relay device.

That way the dumb contactor is only used as a “dry contact” to fully separate load from the control unit.

https://en.wikipedia.org/wiki/Dry_contact

You can use any smart switch / smart plug as the control unit / controlling equipment with this solution.

The only recommendation I have there is to get a quality contactor from a well known manufacturer, like example; ABB, Siemens, or Schneider Electric, and that its specifications exceed requirements.

Examples:

https://www.instructables.com/Make-Your-Home-Smart-With-Sonoff-and-Contactor/

https://smarterhome.sk/en/blog/switching-of-resistance-loads-up-to-32a-230v-ac-with-the-use-of-z-wave_92.html

Still mot sure why I would need an manual switch? It’s just the same as a door sensor. In fact I thibk I could make it with an aqara door sensor. Just replacing the magnetuc for as the connect in the boiler. 5 Volt I believe is the consumer.