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16.5V 40VA Burglar Alarm Systems and Doorbell Transformer,16.5V Plug in Transformer Compatible with All Versions of Doorbell ，Most Security Panels

Q: Why does the voltage drop to 6V when hot? It works fine for a few minutes then drop when it get hot and could not deliver enough voltage to charge.

The high temperature becomes hot, indicating that the PTC inside the transformer has started the temperature protection function. The transformer will not work again until the temperature cools down after the protection function is started Are you overloaded?

Q: Can this be used on a 16 volt system?

sure ,this transformer output is 16-16.5v 40va

Q: Can this be used to replace a 16 volt unit

I would check with the manufacture minimum voltage requirements. It may work, but with limited results. I would replace with the transformer that was installed with the system.

Q: Can i use this transformer to replace my existing honeywell 1321transformer 25va to power my vista20p panel and envisalink evl-4ezr?

Hello, The Honeywell 1321 supplies 16.5 VAC (Volts AC) just like this one. The Honeywell transformer can only supply 25 VA (volts times amps) whereas this transformer can supply 40 VA. That means that it has more capacity to spare compared to the Honeywell, so it will power the equipment just fine. Short answer: YES. :)

4.4/5

Product ID: 720240210

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Details

Brand
WUYELIN
Power Source
AC
Product Dimensions
2.1"D x 2.5"W
Mounting Type
Wall Mount
Current Rating
2.24 Amps

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16.5V 40VA Burglar Alarm Systems and Doorbell Transformer,16.5V Plug in Transformer Compatible with All Versions of Doorbell ，Most Security Panels

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Description

16.5V 40VA Burglar Alarm Systems and Doorbell Transformer,16.5V Plug in Transformer Compatible with All Versions of Doorbell ，Most Security Panels

Have a Question? See What Others Asked

Why does the voltage drop to 6V when hot? It works fine for a few minutes then drop when it get hot and could not deliver enough voltage to charge.

Can this be used on a 16 volt system?

Can this be used to replace a 16 volt unit

Can i use this transformer to replace my existing honeywell 1321transformer 25va to power my vista20p panel and envisalink evl-4ezr?

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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