Ring Video Doorbell 3 Plus on a modern home's front door.

How to Connect Your Ring Video Doorbell 3 Plus Directly to a Low Voltage Transformer (Without a Pre-existing Doorbell)

Connect your Ring Video Doorbell 3 Plus directly to a low voltage 8-24V AC transformer designed for doorbell circuits without an existing doorbell.

If you are planning on using this optional alternate configuration, it’s important to consider that:

  • The Ring Video Doorbell 3 Plus may be connected to an AC transformer. The voltage rating must be in the range of 8 to 24VAC, with a maximum VA rating of 40VA. DC is
    not
    supported. However, you can use a
    as a power source. 
  • Connecting the Ring Video Doorbell 3 Plus to an AC transformer requires some knowledge of wiring. If you are uncomfortable reading wiring diagrams and hooking up wires, consult a licensed electrician for assistance.
  • Do not use halogen or garden-lighting transformers.
  • Do NOT install a diode.