Wiring. Detailed review. Replacing box type.
Bought this a few years ago.
The original of same design lasted 18+ years and stopped working as the contacts had tarnished.
I have bought another to replace a box shaped bell which only lasted a few years and basically had fell apart internally.
This bell is loud and robust.
The screws to attach the bell have small heads allowing them to fit inside the holes in the housing. Unfortunately the screws were to narrow for the existing brown 7mm plugs in the ceiling. So I just used some longer and slightly thicker screws.
Make sure your wiring does not touch the bell housing as this will affect the sound.
I used an existing 8volt 1amp power supply to power the bell.
Make sure you screw the dome in straight and not to tight, there should be a nice ting sound when you flick it
Wiring:
From the transformer, one wire goes the door bell, the return wire from the door bell goes to one contact on the bell. The other wire from the transformer goes directly to the other contact on the bell.
If you are replacing a bell box, it might have had separate contacts for each wire (4 wires all together) so in this case one wire from the transformer needs to be connected directly to one wire from the bell. As only 2 contacts are provided. I twisted the 2 together.
Its preferable to connect 8v neutral to the door bell and the 8v live directly to the bell. This might be different if you have a lit door bell.
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