SEO Title: Ring Pro Power Kit Explained: Versions, Compatibility & Install
Meta Description: Ring Pro Power Kit explained: which doorbells need it, V1 vs V2 vs V3, wiring steps, exceptions, voltage limits and fixes for hum or chime problems.
Estimated Reading Time: 9 minutes
What Is the Ring Pro Power Kit?
The Ring Pro Power Kit is a small module that connects to your indoor chime’s Front and Trans terminals. Its job is to help a wired Ring doorbell receive the right amount of power from your existing doorbell circuit.
It looks unremarkable, and that is why people lose it, ignore it or buy the wrong one. Yet for several Ring models it is the difference between a doorbell that works and one that hums, reboots or never powers up.
The tricky part is that the answer to “do I need it?” depends on your model, your power source and your chime. This guide sorts that out.
Which Ring Doorbells Use the Pro Power Kit?
Ring has renamed some products, which causes a lot of confusion. Ring’s current documentation lists the original Video Doorbell Pro as the Wired Doorbell Plus (formerly Video Doorbell Pro). The Pro Power Kit V2 install guide is now titled for that model.
A different, newer model called the Wired Doorbell Pro also exists. Ring says it does not require the Pro Power Kit to bypass the in-home chime.
Here is the compatibility picture in one place.
| Doorbell | Pro Power Kit |
|---|---|
| Wired Doorbell Plus (formerly Video Doorbell Pro) | Required. Install it before the doorbell. |
| Video Doorbell Pro 2 | Usually included (V3), with exceptions covered below |
| Wired Doorbell Pro (newer model) | Not required to bypass the in-home chime |
| Video Doorbell Wired | Not designed for it; Ring advises against using it this way |
| Video Doorbell 3 Plus | Not needed; remove an old kit when upgrading |
| Plug-in versions with a Plug-In Adapter | Not needed |
If you are unsure which model you own, check the original packaging or the Device Health page in the Ring app. Instructions can vary by model and by region.
Why the Kit Matters
Older doorbell transformers were built to run a simple mechanical chime. A camera doorbell with a Wi-Fi radio asks much more of that circuit.
The kit helps regulate the current so the doorbell is properly powered. When it is missing or wired wrong, owners report a hum from the chime, a chime that rings once and then stops, or a doorbell that never receives power.
One owner who reattached the kit reported that a hum stopped. Another found that the in-home chime only rang when the kit was removed. The pattern is clear: when the kit and chime don’t agree, the symptoms show up at the chime first.
Why it matters: a power problem often looks like a faulty doorbell. Before you replace hardware, check that the right kit is installed in the right place.
Pro Power Kit V1, V2 and V3 Explained
There are three generations in circulation. Ring’s help article compares them side by side.
Pro Power Kit V1
The original uses a wire harness with clip connectors. The clips attach to the Front and Trans terminals on the chime.
In older materials you may also see it called the Pro Power Cable, the accessory that originally shipped with the first Video Doorbell Pro to bypass an internal chime.
Pro Power Kit V2
V2 became the standard for the Video Doorbell Pro, now the Wired Doorbell Plus. Its headline feature is a resettable fuse. If power trips, you switch the supply off and on instead of replacing a part.
Older Ring guidance also describes a Bypass Mode on V2, where the chime wires are pushed into marked holes on the module. Newer instructions attach the kit alongside the existing wires, so follow whichever guide matches your model.
Pro Power Kit V3
Ring staff say V3 is intended only for the Video Doorbell Pro 2. It is included in the Pro 2 spare parts kit.
Don’t treat V2 and V3 as interchangeable. One owner ordered what they believed was a V2, received a V3, and found it did not behave as expected for their older doorbell. Match the version to the model before you buy.
Do You Actually Need the Pro Power Kit? A Decision Guide
Ring’s pages say you must use the kit with the Wired Doorbell Plus. That is the dominant rule, and for most homes with an existing chime it holds.
The Pro 2 is more nuanced, because Ring staff have confirmed several exceptions.
| Your setup | Kit needed? |
|---|---|
| Wired Doorbell Plus on an existing chime circuit | Yes |
| Pro 2 on an existing doorbell circuit | Yes, the kit helps it receive enough power |
| Pro 2 wired directly to a Ring transformer, no existing doorbell wiring | No. Set the in-home chime setting to None |
| Pro 2 with the Nicor PRCP2 chime kit | No. Set chime type to Mechanical |
| Any model powered by a Plug-In Adapter | No |
| Wired Doorbell Pro (newer) | Not for bypassing the chime |
| Two Wired Doorbell Plus units (front and rear) | Yes, one kit per doorbell |
When this does not apply: if you are swapping to a Video Doorbell 3 Plus, Ring staff advise removing the old kit, since the kit is designed for the Pro models.
A quick way to decide
- Find your model. Plus, Pro 2, Pro, or something else.
- Check your power source. Existing chime circuit, direct to transformer, or plug-in adapter.
- Check your chime. Compare it with Ring’s chime kit compatibility list.
- Apply the table above. If your case isn’t listed, ask Ring Support or a licensed electrician.
How to Install the Pro Power Kit (V2 and V3)
This follows Ring’s current install sequence. Install the kit before you install the doorbell.
What you’ll need
- A screwdriver
- A voltage tester
- The Pro Power Kit
- Access to your indoor chime cover
Steps
- Turn off the circuit breaker for your internal doorbell.
- Remove the cover from the chime.
- Loosen the Front and Trans terminal screws.
- Connect one kit wire to Front and the other to Trans, leaving the existing doorbell wires in place. It doesn’t matter which kit wire goes to which terminal. Re-tighten the screws.
- Position the kit inside the chime, away from any moving parts. You can use the adhesive on the back to fix it in place.
- Replace the cover and restore power.
- Install the doorbell and finish setup in the Ring app.
One tip from Ring staff: on a V3, the bypass portion may be hidden under a sticker, so check the Help Center article for your exact kit before bypassing a chime.
Safety: always cut power at the breaker and confirm it with a tester. If you are not comfortable with low-voltage wiring, hire a licensed electrician.
Power Requirements and Transformers
The kit can’t fix a transformer that is too weak. Ring staff told one owner that the Pro needs a minimum of 16V and 30VA. Their 8V/1A chime transformer was not compatible.
A retailer listing for the Pro 2 kit states compatibility with doorbell systems supplying 16-24 volts AC at 50/60 Hz, 40 VA maximum, and describes the connection as a Class 2 energy source. Confirm these figures against Ring’s current specs for your model.
In the Ring app, the Device Health page shows your transformer voltage and a power level. One owner compared readings with and without the kit installed, which is a handy way to see whether your wiring is delivering enough power.
Transformer swaps and mains voltage
A Ring staff reply said Ring’s hardwired transformer is only compatible with standard 120 VAC. If your home runs on 220-240V mains, that transformer isn’t an option.
In that case the usual routes are a plug-in power solution or a licensed electrician who can supply a compatible low-voltage transformer. Local electrical codes apply either way.
Kit vs Plug-In Adapter
If wiring a chime feels like too much, the Plug-In Adapter (2nd generation) is a common alternative for the Pro 2. Ring staff have pointed owners toward it when a power kit was unavailable.
Staff have also said that if you use the plug-in adapter as your power supply, no Pro Power Kit is needed.
| Pro Power Kit | Plug-In Adapter | |
|---|---|---|
| Power source | Existing doorbell wiring and transformer | Mains socket |
| Best for | Homes with a working chime circuit | Homes without suitable wiring, or 220-240V regions |
| Wiring effort | Moderate | Low |
| Chime | Works with the existing chime circuit | Depends on setup; Ring Chime is an option |
One note on chimes: if your doorbell doesn’t ring the internal chime, a Ring Chime or a compatible Alexa device can announce visitors instead.
Troubleshooting Common Problems
| Symptom | Likely cause | What to try |
|---|---|---|
| Chime hums | Kit missing or mismatched | Reseat the kit on Front and Trans and check the version |
| Chime rings once, then stays silent | Kit and chime conflict | Check chime compatibility; confirm the in-app chime type |
| Doorbell has no power | Direct-to-transformer wiring with the kit in line, or a weak transformer | Check Ring’s direct-wiring guidance and the voltage |
| Chime stopped until a reset | Settings or power glitch | Reset the doorbell and recheck chime type |
| Kit keeps ringing the chime | Wired to the wrong terminals | Recheck Front and Trans connections |
Two cases deserve special attention. First, an electrician who installed a V3 on a Pro 2 wired directly to a Ring transformer found the doorbell got no power until the kit was removed. Ring staff later said the kit isn’t needed in that setup, and the In-home Chime setting should be None.
Second, owners with the Nicor PRCP2 report that wiring the kit to the chime caused constant ringing. Ring staff said to skip the kit there and set the chime type to Mechanical.
Buying a Replacement Kit
The Pro 2 spare parts kit includes a Pro Power Kit, a screwdriver, two mounting screws and anchors, two corner kit screws, two security screws, two wire extenders and two wire nuts. Contents can vary by seller.
Ring’s own accessories page is the safest first stop. Stock has been patchy. A UK buyer in 2022 found the kit out of stock at Ring and expensive from US marketplace sellers.
- Price snapshot: one US marketplace listing for a V2 kit showed $15.98. Treat that as a point-in-time example, not a guaranteed price.
- Part numbers: one Pro 2 kit is listed under manufacturer part B089QXNLPV0.
- Seller checks: confirm the listed model, the version, and the return policy before you pay.
Prices differ by country and currency, so compare local retailers and Ring’s regional store.
Regional Notes: UK, Australia, Canada and Beyond
Ring publishes regional versions of its support articles, and instructions can differ by country. UK owners have reported confusing wiring diagrams, including one that showed two doorbells when they had one.
The practical advice is simple.
- Open the help article for your own country.
- Check the chime kit compatibility list for your chime brand, such as Honeywell or Nicor.
- Confirm your mains voltage and transformer type before buying.
Providers worth calling include licensed electricians, smart-home installers and security installers.
Common Mistakes to Avoid
- Buying a V3 for an older doorbell, or a V2 for a Pro 2, without confirming compatibility.
- Installing the kit after mounting the doorbell.
- Wiring the kit in line when the Pro 2 is connected directly to a transformer.
- Using the kit with the Video Doorbell Wired, which isn’t designed for it.
- Leaving the old kit installed after upgrading to a Video Doorbell 3 Plus.
- Using an underpowered transformer and blaming the doorbell.
- Skipping the breaker.
Frequently Asked Questions
1. What does the Ring Pro Power Kit do? It helps a wired Ring doorbell get the right power from your chime circuit by connecting across the chime’s Front and Trans terminals.
2. Do I need the Pro Power Kit for the Ring Pro 2? Usually yes when it is wired to an existing doorbell circuit. Ring staff say it isn’t needed if the Pro 2 is wired directly to a Ring transformer with no existing doorbell wiring, or with the Nicor PRCP2 chime kit.
3. What happens if I don’t install it? Owners report symptoms like humming, a chime that rings once, or inconsistent power. On models that require the kit, such as the Wired Doorbell Plus, Ring says it must be used.
4. What is the difference between V2 and V3? V2 suits the Wired Doorbell Plus (formerly Video Doorbell Pro) and has a resettable fuse. V3 is intended only for the Video Doorbell Pro 2.
5. Does the Wired Doorbell Pro need a Pro Power Kit? Ring says it does not need one to bypass the in-home chime.
6. Can I use the Pro Power Kit with a plug-in adapter? No. If the plug-in adapter is your power supply, the kit isn’t needed.
7. Which terminals does the kit connect to? Front and Trans on your indoor chime. Ring says it doesn’t matter which kit wire goes to which terminal.
8. Can I use it with 220-240V mains? Ring’s hardwired transformer is only compatible with 120 VAC. Look at a plug-in adapter or ask a licensed electrician about a compatible transformer.
9. Do I need two kits for two doorbells? Yes. Ring staff confirmed that two Wired Doorbell Plus units need two kits, one for each door.
Conclusion
The Ring Pro Power Kit is a small part with a big effect, but it isn’t universal. Match it to your exact model, check your power source and chime, and install it before the doorbell.
Start with three checks. Identify your model, confirm the kit version, and look at your transformer’s voltage and VA. Then follow the Front and Trans install steps with the breaker off.
If your setup falls into one of the exceptions, such as direct-to-transformer wiring or the Nicor PRCP2 chime, skip the kit and set the chime type as Ring advises. When in doubt, a licensed electrician can save you hours.
Unfulfilled Points: Local-currency price ranges, live top-ranking competitor analysis, tested wiring photos and Device Health screenshots could not be included because they require live tools or first-hand testing that weren’t available.