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Your cart is empty.Upgrade your doorbell with the Broan-NuTone Tri-Volt Transformer! This 8-volt, 20VA or 16-volt, 20VA transformer is designed for use with multiple door chimes in one home. It is cULus listed for safety, ensuring you have a quality, reliable transformer that will pass inspection and features a thermal cut-off switch designed to shut off the door chime system in the event of excessive temperature. This transformer is constructed of high-quality materials to ensure lasting use for years to come. Installation is easy with the included easy-to-install lock-mount or wall-mount that reduces installation time by 25%. The Broan-NuTone Tri-Volt Transformer measures 2.015" x 1.906" x 2.53" and is the perfect addition to your home.Broan-NuTone leads the industry with forward-thinking residential ventilation products, customized climate, communications and home automation solutions along with award winning customer service. Broan’s inspiring heritage provides the foundation for its three global brands – Broan, NuTone and BEST.
Mr A Delva
2025-08-23 18:33:43
I used this to restore wiring that had been cut in my 1989 home. I was able to reuse the one pair of speaker wire that had been run for a Nutone intercom system. The device powers the Nest Home adequately. The Nest software says the device is receiving 17.9 volts, which is just in spec. My cable run is probably 25-30ft.The device *does* fit in an outlet junction box, but it's a tight fit. The junction box I was fitting it into had been spliced, too, so I had to deal with fitting two solid core mains cables and this device in one box. Rest assured, it can be done!The holes at the top/botom of the device can be used to sandwich it between the outlet box and a standard blank outlet faceplate, to good cosmetic effect.I also liked that the yellow 16 VAC wires can be run through a hole on the front and wired externally, as I don't like the idea of putting bell wires in a mains outlet box. Wiring everything in the drywall and running the low voltage wires between the outlet box and the faceplate seemed a lot safer.
DRHGuy
2025-08-11 13:38:13
This transformer was purchased to replace my old one. I needed this in order to install a Ring Pro Doorbell. The voltage using the 16V terminals measured about 18.5V. I have read some concern from others that such a voltage exceeds the 16V so would be a problem. This is not the case. I have an electrical engineering background and the voltage measured at the transformer terminals without any load connected should read greater than the 16V specified. When a load is connected it will be reduced. Also, AC transformers have a tolerance associated with them so the voltage indicated is not exact. With variable voltage in your home the voltage at the transformer will also vary. I would estimate that any voltage from about 16.5V to 19.5V would be satisfactory and compatible with most mechanical doorbells and definitely the Ring Pro Doorbell. I choose this transformer for the 16V output as well as the current handling ability of 20VA (many other transformers only handle 10VA). I feel that a rating of 20VA is more appropriate for a mechanical doorbell used in conjunction with the Ring Doorbell Pro. Mine works great!
DS
2025-08-06 20:43:25
This was a brilliant solution for me. My contractor wanted to put a huge ugly access panel in my new foyer to accommodate access to traditional doorbell transformers. I found this one instead that could install inside a normal single gang junction box with a single wall plate (duh!!!). It actually can be completely hidden from view behind the chime on the wall. Works perfectly. Such a smart alternative to traditional doorbells!
Phonzee
2025-08-04 14:34:09
This was the third transformer I tried for adding a new chime and video doorbell. I have learned the hard way that the stuff at the Home Repair big box stores is not any good. The original chime and transformer in our home was 10V and 5VA. The new chimes all say they need 16V and 10VA. Tried one from a large chain home repair store and it was buzzing like a wasp next even without the Video doorbell connected. Tried a second one and it buzzed and got VERY hot after the video doorbell was connected. This transformer worked perfectly. It is silent and runs at normal temps. Lesson learned- get more VA and a better transformer if you are adding a Video Doorbell or even just upgrading your chime.
Ryan
2025-05-31 13:50:04
Whole reason I bought this one is cuz all the reviews said it fits in a 1 gang box… that’s not my experience and it’s not even close toFitting.
MiKeM
2025-05-12 18:27:13
Was pretty easy to install, seems pretty well made
RSF
2025-04-30 10:36:48
I replaced a Nu Tone 16v 10va transformer with this one (16v 20va) and my Ring Video Pro doorbell finally works much better. If someone activates the doorbell the iPhone Ring app. opens immediately without a long delay. Even motion activation in front of the Ring doorbell has much improved with notices on the iPhone coming quicker. So if you have been on the phone with Ring customer service multiple times and seen very little performance improvement with all their suggestions (addition of a chime, poor wifi, replacing the unit, etc) I would recommend you get this stronger transformer. In fact, early on with my Ring research, there was no second guessing with needing a stronger transformer. For some reason, this thought has changed at Ring and the customer service people do not bring it up.
Gary L Lauritson
2025-04-13 13:34:59
Exactly what was needed for our push button toilet.
K Lee
2025-04-11 14:53:48
I used it to upgrade from a 16VAC 10VA transformer with a Nutone Doorchime kit is being used with an RCA HSDB2 doorbell where the chime was not going off consistently and wasn't very loud. This transformer at 20VA provides enough power so that it works every time and the chime is now nice and loud. As a bonus, the new transformer fits exactly in the same spot as the old one. The new one is a little wider, but still fit perfectly.
D. M
2025-03-04 11:59:36
We use these to install doorbells in locations where standard transformers are impractical. Pair them with a standard junction box and they work wonderfully.
david ozier
2025-02-23 11:43:24
Use this for a doorbell. Initially bought one at a big box store for 15 dollars less, and it hummed loudly enough to make anyone crazy. Read a review of this one from someone who had a similar experience. Took their advice and spent the extra 15 dollars. What a difference - totally silent. And as an added bonus it has a much more robust way of attaching to a box and porting the house voltage out of the box to it. Easier to install too. Good value.
dimitrios georgiou
2025-02-17 14:38:18
works good
Gene S.
2025-02-04 16:00:14
Working good and quiet
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