Wiring a doorbell.

capntharbelow · 26 Oct 2017

I have bought a Byron 776 door bell with internal transformer. Can anyone tell me which flex I should use from the wall socket to the the doorbell. I don't know the wattage but presumably it is under 720. If that is the case should I use 0.5mm (squared) 2 core flex? Grateful for any guidance.

ban-all-sheds · 26 Oct 2017

What do the installation instructions say?

capntharbelow said:
... wall socket ...

Are you planning to plug the thing in?

capntharbelow · 26 Oct 2017

There are no written instructions - only drawings. The drawing shows where to plug in the bell wires from the push-bell and where to plug in the L and N wires from the cable coming from the socket. There is no indication about the strength of the wiring from the wall socket to the doorbell which, I repeat, has a built-in transformer. Is it that the transformer will moderate the voltage and that any 3 amp plug and wiring for, say, a table lamp?

capntharbelow · 26 Oct 2017

I should have said:
There are no written instructions - only drawings. The drawing shows where to plug in the bell wires from the push-bell and where to plug in the L and N wires from the cable coming from the socket. There is no indication about the strength of the wiring from the wall socket to the doorbell which, I repeat, has a built-in transformer. Is it that the transformer will moderate the voltage and that any 3 amp plug and wiring for, say, a table lamp WILL DO?

Taylortwocities · 27 Oct 2017

If you are plugging the transformer in, then a 3A fuse in the plug is needed. The cable from the plug to the transformer needs to be able to carry 3amp, so anything 0.75mm² or larger will be fine. eg such as that used for a table lamp.

The wire from the transformer to the bell and from the bell to the button will be the wire known (for some reason) as "bell wire".

EFLImpudence · 27 Oct 2017

The OP says the bell has an internal transformer which, I think, is causing the confusion.

capntharbelow · 27 Oct 2017

Many thanks for taking the trouble to help me. You have cleared the confusion.

Taylortwocities · 27 Oct 2017

Ahh yes. 0.75mm² for the cable from plug to doorbell then. As shown here

capntharbelow · 27 Oct 2017

RESPONSE TO TTC:

Thank you so much. The video was excellent; the appliance was exactly what I had bought; and with your help the installation went perfectly. I am a happy chappie.

piper64 · 13 Oct 2021

Old thread but I have just bought a Ring Doorbell Wired and Byron 776 to do the same thing as in the video. The Byron chime is powered, it works with a standard bell button, but when connected to the Ring, the chime won't work.
How is it that it works in the video, I have wired it up the same?
Any ideas?

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Wiring a doorbell.

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