Smart Relay
Ideal solution for controlling underfloor heating and other stationary devices.
Where are Smart Relays most commonly used?
Floor Heating
Electric radiator
Floor Heating
Electric radiator
How the Smart Relay helps you
Lower electricity bill without sacrificing comfort.
The Volton Smart Relay shifts major consumers, such as underfloor heating or an air-to-air heat pump, to cheaper hours. You still get the same warm home and floor, but pay less for electricity.
No need to live by the electricity clock anymore.
You don’t have to track electricity prices yourself or think about when to turn on underfloor heating or other devices. The Smart Relay does it for you and automatically schedules operation to cheaper hours.
Clear overview of your consumption and savings.
The app shows when the device was working, how much electricity it consumed, and how much you've saved financially. The vague "electricity is expensive" becomes a concrete number you can see and understand.
One-time purchase, long-term win
You only pay for the relay once—there’s no monthly fee. Once it has paid itself back on your electricity bill, every next saving is pure gain.
How the Smart Relay works
The Smart Relay is installed in the electrical panel and requires electrical work competence. If you’re comfortable with electrical installations, you can install it yourself. If you prefer a professional, our partner electrician can come on-site and install the Smart Relay for the device you want to control.
In the app, you specify which device you’re controlling and when you need a warm floor, a warm room, or a ready sauna. Choose an energy mode (economy, balanced, comfort, or advanced settings) and the app optimizes the rest for you.
The Smart Relay tracks spot prices and switches the device on during cheaper hours, keeping it off during expensive hours. If you want more control, you can disable automation and switch the device on and off yourself in manual mode.
Track savings and consumption in real-time and see how your investment pays off.
What our customers say
Everything went quickly with Volton. Installation was simple, and the system works so I don't have to switch devices on and off myself. The house is warm, the app gives a clear overview of where energy is going, and electricity bills are about a third smaller than before. Currently, ten devices are connected to Volton, and I'm really glad that such young people have made this solution ready. I definitely recommend it.
Battery factory and circular economy engineer
Smart Relay FAQ
Where can I use a Smart Relay?
• underfloor heating
• air-to-air heat pumps
• other large home electricity consumers that have their own circuit breaker in the panel
If you’re not sure whether your device is suitable, let us know and we’ll help you figure it out.
Technical specifications
• Voltage: 230V / 400V (single and three-phase support)
• Connectivity: WiFi 2.4GHz
• Installation: DIN rail (standard electrical panel)
• Supported loads: resistive and inductive loads (heating systems, chargers, etc.)
• Control method: remote control via the Volton app or automation rules
• Energy metering: real-time consumption and usage tracking
• Protection rating: IP20 (for indoor use inside an electrical panel)
• Temperature: -20°C to +50°C
• Certifications: CE, RoHS
How to install a Smart Relay?
Installation notes:
• fits a standard DIN rail system
• requires both neutral and live conductors
• configuration happens in the Volton app after installation
Volton works with partner electricians across Estonia. If you don’t have an electrician, see our partner list here and contact them directly, mentioning you want to install a Volton Smart Relay.
Installation usually costs €50–€150.
How to reset the Smart Relay to factory settings?
1. Press and hold the green button on the relay for about one minute.
2. When you hear the beep and the indicator light starts blinking, the relay has successfully reset to factory settings.
How to connect the Smart Relay to the app?
https://youtu.be/iX05yIJZQbU
Use the same tutorial video—the pairing procedure is identical for all Volton devices, including the Smart Relay.
If you’ve lost the paper setup guide with the device code, you can download the same guide again as a PDF here.
See solutions for other devices
Smart Plug
DIN Smart Relay
3-phase DIN Relay
EMS-Hub
Smart Plug
DIN Smart Relay
3-phase DIN Relay
EMS-Hub
Have questions or problems?
Feel free to contact us!
Have questions or problems?