Wirewound Resistor for Ring Video Doorbell (1st Gen) and Ring Video Doorbell 2

This wirrwoubd resistor worked great on doorbell wiring. I now use the 24 vac to charge my security doorbell..

A family member has a Ring Video Doorbell 2 that was very limited because there was no doorbell in the house before, so it was battery powered. Some stuff you can’t do unless hardwired, and everything else drains the battery quickly enough to be annoying if you turn them all up. I got a wall adapter to provide constant power and keep the battery topped off, and I added this per Ring’s recommendation to help keep from burning out that wall wart before its time.It was easy to install: unplug the wall wart, pick one side of the cord (either side, doesn’t matter which), cut it, peel it back from the other side of the cord, strip the insulation off the ends of the wires, poke it into the included splice connector, and lock the arm down. Once they’re all locked down, you’re good to go. Plug it back in and enjoy.

I had a doorbell from an intercom (M&S System MC602). It is not easy to replace the existing doorbell with ring doorbell 4. The most difficult part is to find a cover for the original doorbell faceplate and attach the ring doorbell 4 on the cover. I was able to find a blank plate to replace the old one without drilling holes on the wall. Then drill 4 holes on the blank plate to attach the base of the ring doorbell 4. Drill another hole to pass the two wires to connect the original doorbell wires. It looks really cool after the physical installation (see the doorbell picture). The wiring turns out to be challenging. Without rewiring, the ring doorbell 4 does not work with the existing digital doorbell and cannot be charged by the transformer of the original intercom. So, a rewiring was performed with this resistor in a serial circuit with the doorbell 4 and the transformer with 16.5VAC & 40VA (see the messy wiring picture). Then the ring doorbell 4 is hardwired and charged by the transformer constantly. No more battery change for the ring doorbell 4. But I do have to buy a ring chime to replace the existing digital doorbell. Pushing the ring doorbell 4 will make the chime sound the doorbell ring. Perfect!

Used to replace lost part.

If you DIRECTLY hardwire a 1st Gen Ring Video Doorbell, without a doorbell chime in between, then it might appear to be working correctly, but you'll find out that the doorbell never actually trickle charges with most transformers due to the unregulated power. This regulates the power and allows your 1st gen video doorbell to trickle charge (at a rate of around 4% per day on a 24VAC 40VA transformer for me) if you directly hardwire it. Newer models, like the Doorbell Pro don't require this, but might require a "Ring Pro Power Kit" in the hidden bypass mode (by removing the sticker) for a direct hardwire installation wihout a chime. Check ring forums or reddit for information on your particular ring doorbell model, since there's so many, with additional generations between them.You might be asking, why don't you have a chime? Well, some of us have dogs that go bonkers when the doorbell rings and remove the home chime, or some of us use the ring wifi chime(s) instead of the old school mechanical chimes.

Not needed for my Ring as it says on description. Waste of money.

To be able to connect the ring door bell 3 to 24 vac (to automatically recharge the battery) Ring tells you that you need this piece, and you really do. Without this resistor the Ring will not recharge the battery, and the battery will drain. It is easy to install and it works as expected.

Went through Ring technical support at least 4 times to troubleshoot my Ring video doorbell to transition from from battery to hardwired trickle charge. Had to buy all the components including this wirewound resistor, doorbell transformer, multimeter, etc. to only find out the model of Ring video doorbell (1st Gen) was incompatible for hardwired charging. Go figure!!! This resistor is not to blame for the poor technical service and support. However, when I did have everything wired up, this resistor ran hot to the point where you cannot pick it up with your bare hands. The resistor needs to be mounted in an appropriate location so the heat fins can get adequate air flow for cooling.