How to Wire Doorbell Transformers
Single Push Button to One Wired Doorbell
For a single doorbell installation, use one push button. One wire from the push button connects to the front door screw on the doorbell. The second wire from the push button is wired to the doorbell transformer.
Connect a wire from the terminal, common, or transformer screw to the doorbell transformer. Connect another wire from the transformer to the second wire from the doorbell push button.
Two Push Buttons to One Wired Doorbell
For two push buttons with one wired doorbell, the setup is essentially the same with this difference. One wire from the second push button (back door, for example) will connect to the rear terminal screw on the doorbell box chime. A second wire from the second push button will connect to the wire from the first push button that leads into the transformer.
Wiring a Tri-Volt or 3TRAN Wired Doorbell Transformer
A tri-volt doorbell transformer allows you to use different voltage and VA options. If connecting two wired doorbell chimes OR connecting your Video Doorbell in conjunction with your wired doorbell, this is a great transformer to choose.
