Introduction

Modern doorbells are wireless, smart and even provide video. But many models currently in homes, even some of today's popular smart doorbells, are wired. So don't be intimidated if you need to wire a doorbell transformer. You can do this!

Whether you're replacing an old doorbell or adding a new one, wiring the transformer itself is the same. One side has black, white and green wires for the line voltage and ground, and the other side has terminals to allow low-voltage wires to feed your doorbell. Doorbells can't handle the power coming from your electrical panel, so the voltage must be lowered, usually between 8V and 24V. That's what the transformer does.

If you are replacing an old doorbell transformer, start with Step 1. If you are adding a new one, follow the directions on your new kit to add the doorbell and route the power wires and low-voltage bell wires to the transformer location. Then follow the steps for wiring the new transformer below.

Here's how to wire a doorbell transformer.

Tools Required

Materials Required

• Doorbell transformer
• Wire nuts

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