How to Wire a Doorbell

In Electrical wiring “doorbell wiring” is a very important and useful connection. In every home, we wire a doorbell and without this wiring connection, all wiring is incomplete. In this post, I will share three wiring diagrams of doorbells in which I have shown doorbell transformer wiring, doorbell with push button and two-door system wiring.

How to Wire a doorbell?

To wire a doorbell first of all connect the neutral wire to the doorbell at the first terminal or connect it to the doorbell wire. Then connect the phase (L) wire to the push button and then do a wire connection between the bell and the push button 2nd terminal as shown in the below diagram.

doorbell wiring diagram


In the above diagram, I wired a doorbell with a push button and I also showed a symbols diagram. This diagram is for those doorbells with are working on 220 V or 110 V and have an internal power supply. The next diagram is for those bells which don’t have an internal power supply or transformer which step down the electric current.

How to Wire a doorbell with Step down transformer

The next doorbell diagram for those doorbells required a step-down transformer. E.g if a doorbell required 12 or 24 Volt (V) and we have 220 volt AC incoming supply then we use a step-down transformer for these types of doorbells.
In this wiring first, we wire the step-down transformer and then we follow the same method which we use for the above doorbell wiring as shown in the below diagram.

doorbell transformer wiring diagram


How to wire doorbell two-door system

In this system, we use a doorbell for two doors. E.g if we have two doors in our home and people can enter from both places then this doorbell connection is better than using two doorbells. In this bell wiring connection, we use two push buttons and one doorbell. This connection will give the supply to two push buttons and get the supply from the push button to one terminal of the bell as shown in the below diagram.

wire a door bell from 2 push button

In the above doorbell wiring diagram, I have shown a diagram with a transformer and if you have a doorbell which has an internal step-down supply then you can also follow and use the above first diagram method. I hope now you learn doorbell wiring, however, if you have any questions regarding this post then do comment below section.

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