powering the AD110 doorbell

[bphillips]

I plan to use 4 AD110 doorbells at my new house. 3 of these will be purely cameras. I won't hook them up to a doorbell chime. I want to run wires to power these doorbells, what are the power requirements? Can I hook all 3 doorbells up to this 24V transformer?

https://www.amazon.com/Doorbell-Transfo ... asin_0_img

[Revo2Maxx]

I would not use a 24vac Transformer. I would if use a 16vac Transformer and personally running 2 off one transformer is one thing as long as the right size wire is used and as long as the length of wire isn't to long. Running 3 would be fine again as long as the 2 things mentioned already was covered and for the third to be added you would want to have one that is at least 50va and that is 3.125amps or there about. Here are things that should be noted. While a smaller Transformer could be used there could be a large issue if your home ever looses power and when the power returns all 3 cameras at the same time would PULL more power then normally needed..

So you ask about a 24vac Transformer in your post however the listing to Amazon is 16vac.. They say a 16vac 30va is min Requirement for 1 a 30va as I was saying before I clicked on your link is going to be to small of a transformer. I have a 16.5vac 2.5amp power supply that runs 2 without an issue. that is the same as 40va.. Personally as I said I would go 50va to run 3 no less.. I would also have one on a Knife Switch this way if the power was off, I would be able to remove connection for one of the cameras so it would be less stress on the Transformer when the power returns. Once I heard the other 2 connect I would then return the switch to connected state so it could power up and this would be much less work for the Transformer to deal with at 1 time..

[cardiofuse]

My leads at the doorbell button ran around 19 volts and was still not enough to stop the damn drop outs.

Solution, turn the IR lights off......crappy end game here. This is a KNOWN problem and unless you can get closer to 24 volts.....out of luck.

[Revo2Maxx]

Hello Cardiofuse Welcome to the Forum

Sadly it has nothing to do with Voltage it has to do with the Current..

At this time I wouldn't use a 24vac Transformer and if your going to use a indoor Bell I don't know of many in 2021 that even uses a 24vac to power the indoor bell..

So what I found with many hours of testing different Transformers that are out there for others to use so I got some for testing.. 2 things I found first 24vac don't matter if it was 30va or 100va as I have tested both and both killed the Amcrest Chime Kit that comes with the camera because the Transformers go into a Under Voltage over current event and the Chime kit can't take the 10amps of current. Camera isn't fazed because it is what is causing the issue on button push lol

Second thing I found I have 16.5vac 2.5amp power supply and it will power 2 cameras one with a Digital Chime and one without. This also is able to power both cameras in IR mode and can take the power from both of them being off until the Power caps have Drained and power Restored at the same time and at no time did the system have a power issue. The Voltage was never over 19vac and never fell below 16.7ish. in the testing with that supply.

Using a 16vac 10va and mind you this is only rated at 10va and means shouldn't have been more then 0.625a aka 625ma. In my testing of this power supply I found my Voltage was 19vac without load, Once the camera was added and only 1 camera that power dropped to 14.72vac however once the camera was not at load the camera was at 18.21vac. However I then pressed the button on the camera, Transformer went to 7.2volts and the Current sky rocketed to 1.25amps on my Amp Meter. That is double the current that it was rated however I was able to do some other testing on a different Doorbell and normal switch with that transformer and a normal push button and someone just pressing that button extended time made the transformer drop to 6.898vac and was over 1.44 amps however that was caused from the Transformer drop in voltage.. Sadly the Transformer is 10va and that means at what ever volts it is producing it will give 10va of current lower the voltage higher the current just as it was with what Killed my Chime Kits in my testing with the 24vac Transformer..

All my Testing with 16vac 30va and the 16.5vac 40va transformer and power supplies have been the best power for the doorbell camera and even able to power more then1 without drop outs.
However with both of them running a Digital Chime, on a 7 or 10 second setup on App I can make the system go offline after 3 to 4 presses of the button letting the chime run it full time.