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Will Nest Hello Work on 12v? Power Supply Needed?

Last Updated Jul 9, 2022
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Nest is an American company that specializes in home products. Nest Hello is one of their newest product launches, and it has been getting a lot of attention. However, there are some people who have asked if the Nest Hello will work with a 12-volt power supply? Can the Nest doorbell work on 12 volts?

The Nest Hello will work on a 12-volt power supply if it is the battery-powered model, but the Nest Hello will not work on a 12-volt supply if it is the wired option. The wired option requires at least 16 volts in North America.

If you’re wondering whether your Nest doorbell requires a specific voltage to operate properly, then this article may be able to help you out! Keep reading to learn more about the Nest Hello’s power supply needs.

Can A Nest Doorbell Work on 12 Volts?

The Nest doorbell’s battery-powered model will work with a 12V power supply. However, if you have the wired Nest doorbell option, then it will not work on 12V and will require at least 16 volts instead.

The Nest doorbell’s power consumption is something to consider before buying. The wired model requires 10 to 40 VA, and the battery-powered option also requires 10 to 40 VA.

How Many Volts Does the Nest Hello Require?

The Nest doorbells that are battery-powered require 8 to 24 volts AC. While the Nest doorbells that are wired for power require 16 to 24 volts AC.

The voltage that the Nest Hello needs will vary depending on what country you are in. For example, North American models need 16V, but UK models only need 12V.

Can I Install Nest Hello with Power On?

You cannot install the Nest Hello with power on. Any time you are working with electricity you want to turn the power off.

Turning the power off ensures your safety. The Nest doorbell installation is very easy and should not take more than 20 minutes. Additionally, you only have to cut the power to the circuit that your Nest is on.

When you are done, you can turn the power back on and test your Nest Hello.

If you are unsure or skeptical about how to do the installation, it is best to contact a professional to do the work for you.

What Voltage Does Nest Hello Need In the UK?

The voltage that Nest Hello needs in the United Kingdom is 12 to 24 volts AC. This is a lower voltage compared to what North American models need, but it will still work just fine.

If you try to install a model meant for a different region or vice versa, it will not work and could potentially damage the device. Make sure to double-check that you are buying the correct model for your area!

Make Sure Your Current Doorbell Wiring Is Compatible

Just like with any other product, make sure you are buying a compatible doorbell before you invest in a Nest doorbell. You do not want to buy your Nest doorbell only to realize it is not compatible with the wiring in your home.

This can cause a world of headaches, so double check before you buy the Nest doorbell. The following is a table showing the compatibility needs we have previously discussed:

Type of PowerNest Doorbell (battery)Nest Doorbell (wired)
Voltage8 to 24 volts AC16 to 24 volts AC (North America)
12 to 24 volts AC (Europe)
Power10 to 40 VA10 to 40 VA (North America)
8 to 40 VA (Europe)

As you can see from the table above, the requirements are similar for a battery-powered versus a wired Nest doorbell.

The following list is a summary of what conditions allow for a Nest Hello doorbell to be installed:

  • Your existing doorbell has 2 or more wires – This is most likely compatible. Check the voltage to be sure.
  • Your existing doorbell has wires and batteries – This is most likely compatible. Check the voltage to be sure.
  • Your existing doorbell has only batteries – This is only going to be compatible with the battery-powered Nest, or a wired version with the Indoor Power Adapter

And if you see a situation that does not fit into any of the above it will most likely be in your best interest to call a professional to do the work for you.

In Summary: Nest Hello Will Not Work With 12V

The Nest Doorbell will only work with a power supply of 16 to 24 volts. If your doorbell has existing wiring, it is likely compatible. Always contact a professional if you have any questions. Electrical work can be dangerous if you are inexperienced. We suggest contacting a professional if you feel out of your depth in any way.

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