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

If you don't have an existing doorbell, it's possible to connect a Ring Doorbell 3 directly to a low voltage 8-24V AC transformer designed for doorbell circuits.

Note: Some important facts for people planning on using this optional alternate configuration for their Ring Video Doorbell 3. 

  • The Ring Video Doorbell 3 may be connected to an AC transformer. DC is not supported. The voltage rating must be in the range of 8 to 24VAC, with a maximum VA rating of 40VA.
  • Connecting the Ring Video Doorbell 3 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.

To see a wiring diagram for one, doorbell and one transformer, click here.


Join Our Community

Share feature requests, get help, and discuss the latest in security with your fellow users on Ring's first neighbor-to-neighbor community forum.