Relay box 230V

Switch a contact with a Plug

This Relay box is powered by 230V and switched by a plug. In combination with a plug, Adam HA and a thermostat, you can then switch any 0-230V contact based on the heat or cooling demand.

Note: You may need one of the optional accessories.


Relay box 230V79,00
  • Free shipping from €100 (NL) or €150 (BE)
  • Ordered before 12:00 on working days, delivered tomorrow
    (when in stock)
  • 2 weeks to change your mind


What is it?

Do you have a heat source such as a boiler or heat pump with a 230V on/off contact that you want to control separately? For example, for closing a cooling contact? Then use this 230V relay box together with a plug to control a 230V on/off contact.

Closing a cooling contact is possible, for example, in a heat pump with a cooling contact that puts the heat pump in cooling mode, but only starts cooling if the demand contact also closes. You set the plug as appliance type cooling contact. If you put Adam HA in cooling mode the plug will switch on and the contact will close. If Adam HA subsequently has a cooling demand, Adam’s boiler contact will also close and the heat pump will start cooling.

Please note, do you have a 230V on/off contact for heating? Then you do not need this Relay box. Then use the Relay box 5V to connect Adam HA directly to the 230V on/off contact for heating.



  • 1x Relay box 230V with cables up to 1m


What do you need?

  • 1x Adam HA
  • 1x Plug / Aqara Smart Plug
  • 1x Thermostat
  • 1x Free socket
  • 1x Cooling feature (optional, only for cooling)


Enter an ID

Do you also choose the Cool feature? Then enter the ID of your Adam HA if you already have one. The ID consists of 8 letters and is located on the bottom of the gateway. You can also find the ID in the app.