Internet #309522936

Model #21028461

Store SKU #1004401951

Hardwire Smoke and Combination Alarm Adapters

  • Allows installation to an existing wiring harness
  • First Alert/BRK and Fire X Smoke Alarm Adapters
  • Designed for use with interconnected hardwire alarms
  • See More Details
$700

Frequently Bought Together

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Price:
$700

Product Overview

The quick convert adapter allows the installation of a new Kidde alarm to an existing competitors wiring harness. This allows for easy installation when replacing the specified smoke alarm brands with a Kidde product. The smoke alarm adapter also allows the specified approved brands and models to be interconnected with other Kidde product. This Adapter can only be used when replacing First Alert and BRK models; SA4121B, 4120, 4919, 5919 and 86RAC with plug-in connector, manufactured before June 1, 2003. These models have been tested for interconnect compatibility with the Kidde alarm models; 1235, 1275, 1276, 1285, i12020, i12040, i12060, i12080, PE120, PI2000, KN-COSM-IB and RF-SM-ACDC.
  • Allows approved brands and models to be interconnected with Kidde smoke alarms
  • Includes 1 adapter for use with BRK/first alert wire-in smoke alarms and 1 adapter for use with fire X wire-in smoke alarms
  • Designed for use with interconnected hardwire alarms
  • Connects to an existing wiring harness
  • For use with first alert and BRK wire in smoke alarms, the KA-B can only be used when replacing first alert models: SA4121B and BRK models: 4120,4919,5919, 86RAC with plug in connector
  • Learn how to install a smoke alarm

Info & Guides

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Specifications

Dimensions

Product Length (in.)
1
Product Width (in.)
5.5 in

Details

Accessory Type
Safety Accessory
Alarm/Detector Features
No Additional Features
Connector/Contact Type
2-Wire
Included
No additional components or accessories are included
Pack Size
6
Power Source
Hardwired
Product Weight (lb.)
.35
Returnable
180-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
1

Questions & Answers

9Questions12Answers

Will this adapter work with firex 120-1072c?

Asked by ODE September 4, 2020
1
Answer

Hello ODE, The adapter, KA-F, will work with the old Firex units.

Will these adapters work where a FireX G-6 was connected before?

Asked by Geoff August 8, 2020
2
Answers

Hello Geoff, Unfortunately they will not. The wiring for the G-6 is different than the FADC series. The adapter will not work.

will these adapters work on old firex120=1182 harness plugs

Asked by batman June 28, 2020
1
Answer

Hello batman, Yes. The adapter KA=F2 will work with the 120-1182 wiring harness

Will this adapter work with Model 9120B6cp? I have lost the pigtail that came with the alarm.

Asked by dbtraveler June 26, 2020
1
Answer

Hello. We at Kidde don't know. The KA-B2 adaptor that comes with this alarm is made for the wiring harness that came with the First Alert/BRK models 4120, SA4121B, 4919, 5919, and 86RAC. It depends if the wiring harness for the 9120B6cp is the same as these other models I have listed. We want your business but we don't want you to purchase the wrong product and have issues and have to rewire without realizing it. .

Will this adapter work to replace a firex model 120-1072B so I don't have to redo the wiring? Th...

Asked by Scott May 26, 2020
1
Answer

Hello Scott, Yes the adapter will work to allow you to use the existing harness.

My question wasn’t worded as well as it could have been. I have a Firex Model G-6 now. I am lo...

Asked by Ken May 10, 2020
1
Answer

Hello Ken, The adapter will only work for a few old wiring harnesses from FIREX. The G-6 wiring will NOT work with the adapter for Kidde models. There is no other option but to remove the old FIREX wiring harness and replace with the new Kidde wiring harness. In addition, all of the old FIREX units will need to be removed before any new unit is put onto the circuit as they are not compatible. If you leave any old units on the circuit, once the new is attached the whole circuit will sound.

If this adapter does not work with the Firex Model G-6, can you tell me what adapter does? What ...

Asked by Ken May 10, 2020
1
Answer

Hello Ken, There is no adapter for the G-6. The only thing that can be done is to remove the old wiring harness and install the new. Sorry.

Is this the adapter I need for my existing smoke alarms which are Firex Model G-6?

Asked by Ken May 8, 2020
1
Answer

Hello Ken, Unfortunately, the adapter will not work with all FIREX models. This one will not work with the adapter. Sorry.

Can use this device to link existing to new smoke detectors that are not connect to each other

Asked by Dave September 22, 2019
3
Answers

I would say "no". This just allows you to replace aging smoke detectors with newer model detectors without re-wiring. I believe these only work with Kidde and FireX brand. For example I needed them to replace 2001 smoke detectors with 2019 smoke detectors.

Customer Reviews

  • 29 Customer Reviews
  • 4.4 out of 5 stars overall
86% of customers recommended.
Overall Ratings
5star-icon(19)
4star-icon(6)
3star-icon(2)
2star-icon(0)
1star-icon(2)
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Saved Time, But Hard To Snap In Place
I am in the midst of replacing all seven smoke detectors in my house with four Kidde TruSense Smoke and three TruSense Smoke and CO detectors. Most of my (extremely) old detectors were FireX, and these adapters saved me some serious rewiring. It didn't look pleasant to pull the jumble of wires and wire nuts out of the ceiling and hardwire the connectors that came with the new detectors! My first attempt to connect the adapter to the original wire harness took about 25 minutes and resulted in sore fingers for days. The dang thing just didn't want to snap in place. This problem appears to be a result of the center tab. I'm not really sure why it's there, since it doesn't clip in place like the side tabs. It doesn't appear to provide any structural advantage, and is very much in the way. When I was finally able to get the side tabs to snap into place over the old harness, the center tab was bent pretty heinously. It might have been easier to just cut it off with a hacksaw. After struggling with the second install for several minutes, I learned my lesson and went in search of a pair of needlenose pliers. That made it much easier to get the side tabs to snap into place, and it was off to the races after that. I have now replaced five out of seven. One needs to be rewired, because it does not have a compatible harness (but I already knew that and only bought six adapters). The other is 15 feet up on my vaulted bedroom ceiling, and I have to drag up the 10 ft ladder from the garage. I'll hopefully get around to that before 2021! I was torn between giving this three or four stars, but I opted for four since it saved me from rewiring. I do wish that they sold these individually for FireX or First Alert. I'm going to wind up throwing the six unused First Alert adapters in a drawer somewhere, and that seems like a waste. Selling them individually might have cut the price in half as well.
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I purchased new kidde smoke detectors to replace my old one and these adapters make installation ...
I purchased new kidde smoke detectors to replace my old one and these adapters make installation super easy. My previous smoke detectors were already hardwired so it literally took minutes to install, i simply detached the old ones attached the adapter and attached the new smoke detectors. I highly recommend buying the adapters for easy installation!
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I returned adapters due to them not working with 2...
I returned adapters due to them not working with 2 decade old alarms.
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This adapter made swapping out my old smoke detectors for...
This adapter made swapping out my old smoke detectors for new a breeze. However, I will say there are two different adapters per package which seems wasteful since I have no use for the one that didn’t fit my original wired plug. Would be great if you could buy just the one you need.
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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provided conversion from old smoke detector system to new model...
provided conversion from old smoke detector system to new model without the need for any rewriting. not 5 stars because you get extra converters that you can't use. this might be 'easier' for kidde, but seems wasteful.
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They don’t fit tightly onto the current plug but they...
They don’t fit tightly onto the current plug but they were good enough to complete the job after 2-3 times of disconnecting during installation.
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Of course the set is for compatibility with older systems, but it seems a little wasteful to purc...
Of course the set is for compatibility with older systems, but it seems a little wasteful to purchase a product where only 1/2 will work and the other half will not. This includes 2 adapter wires, of which only 1 will fit your old unit so throw the other one away. Landfill express. But it worked.
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Just need to break off the tab on the FireX...
Just need to break off the tab on the FireX adapter for easy fit, then it worked.
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