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MG ELECTRONICS MGT2420 TRANSFORMER,24VAC 20VA UL APPROVED

4.4 4.4 out of 5 stars 211 ratings
$15.71 with 8 percent savings
Typical price: $17.00

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Purchase options and add-ons

Brand MG
Power Source Corded Electric
Maximum Frequency 60 Hz
Minimum Frequency 60 Hz
Specification Met UL

About this item

  • 20VA
  • 24V
  • 60HZ
  • 830MA
  • CHASSIS MOUNT TRANSFORMER
› See more product details

Customer ratings by feature

Value for money
4.6 4.6
Easy to install
4.5 4.5
Sturdiness
4.1 4.1
See all reviews
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  1. MG ELECTRONICS MGT2420 CLASS 2 TRANSFORMER 24VAC 20VA UL APPROVED
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  3. Class II Transformer - 16.5 Volt AC, 20 VA, UL/CSA Approved : MGT-1620
  4. 24V 830mA Thermostat and Doorbell Transformer, Wall Transformer with PTC Fuse Compatible with Nest, Honeywell, Ecobee and Sen
  5. PWS-2420 24VAC 20VA Class II Power Supply AC Adapter UL 24V Transformer Plug with terminals
  6. 24VAC 50VA Wall Transformer with PTC Fuse Compatible with All Versions of Doorbell，Nest, Ecobee, Sensi and Honeywell Thermost
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Product Warranty: For warranty information about this product, please click here

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Product Description

Turns Ratio:-; Input Current:830mA; Frequency Min:-; Frequency Max:60Hz; Transformer Mounting:-; Product Range:-

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Price-8% $15.71
Typical: $17.00		$19.99$14.99$29.99$19.99
Delivery
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Customer Ratings
4.44.4 out of 5 stars211
4.74.7 out of 5 stars105
4.34.3 out of 5 stars161
5.05.0 out of 5 stars1
4.34.3 out of 5 stars12
Value for money
4.6
4.6
3.7
—
5.0
Easy to install
4.5
4.8
4.3
—
5.0
Sold By
Zentra, LLC
WUYELIN
WUYELIN
XZGM
WUYELIN
power source
Corded Electric
Corded Electric
Battery Powered
Corded Electric, Battery Powered
Corded Electric
maximum frequency
60 hertz
60 hertz
60 hertz
60 hertz
60 hertz
minimum frequency
60 hertz
60 hertz
60 hertz
—
60 hertz
specification met
UL
RoHS
FCC
—
—

Customer reviews

4.4 out of 5 stars
4.4 out of 5
211 global ratings

Customers say

Customers like the performance, ease of installation, quality and value of the transformer. For example, they mention it works excellent, it's easy to install and use and it'll last a long time. That said, opinions are mixed on brightness.

AI-generated from the text of customer reviews

40 customers mention33 positive7 negative

Customers like the performance of the transformer. For example, they say it works excellent, it works great for their Nest, and it works perfectly. Some mention that it's heavy duty and even has a power led on it.

"...Once everything was installed it worked like a charm. The green LED is nice for troubleshooting so I know if the power is out at the outlet." Read more

"...Well made and works for what I needed but the green LED light on the unit is VERY bright, even after I tried to cover it with tape so it wouldn't..." Read more

"...to stick out Above the Rest this product got 4 stars because it works properly and the price was right...." Read more

"Nicely packaged no damage.Worked great with the ecobee. I had a 2 wire setup (W and Rc)...." Read more

5 customers mention5 positive0 negative

Customers find the installation process of the transformer to be easy.

"Great price for exactly what I needed. Super simple installation, did myself!" Read more

"Easy to install if you know how and have wire" Read more

"Easy to install and use" Read more

"Easy to use" Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the transformer. They mention that it is well-made.

"...Well made and works for what I needed but the green LED light on the unit is VERY bright, even after I tried to cover it with tape so it wouldn't..." Read more

"...say about it but it does not stick out Above the Rest it is a good quality product and I would recommend it to others" Read more

"Great little transformer. Heavy duty and even has a power led on it." Read more

"Works just like it should, well built" Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the transformer. They mention it has a good price and is worth the money.

"Great price for exactly what I needed. Super simple installation, did myself!" Read more

"...Rest this product got 4 stars because it works properly and the price was right...." Read more

"Dies exactly what they advertise. Worth the money." Read more

"good price..." Read more

6 customers mention4 positive2 negative

Customers are mixed about the brightness of the transformer. Some mention that it has a green light that illuminates all the time, which is an added bonus. They also say that the LED is nice for troubleshooting, so they know if the power is out at the outlet. However, others say that it's well made but the LED indicator light is way too bright.

"...The green LED is nice for troubleshooting so I know if the power is out at the outlet." Read more

"...It now has a green light that illuminates all the time. The light is kinda cool to have but you may wanna think about it if you are using the..." Read more

"...The LED is an added bonus so I know it is working." Read more

"...and works for what I needed but the green LED light on the unit is VERY bright, even after I tried to cover it with tape so it wouldn't be seen...." Read more

Great for Smart Thermostats with No Common!
5 Stars
Great for Smart Thermostats with No Common!
I used this transformer to create a 24VAC "common" for my new Ecobee3 Lite smart thermostat. I just had a new Peerless Boiler installed and the hydrostat that was used did not have any low voltage common hookups. It had the standard 2x T hookups for the thermostat. I ran a new 18-5 wire from the thermostat to the boiler and used 2 for the R and W to hookup to both T and T at the hydrostat. I added a GFCI outlet at the on/off switch to hook this "MG Electrontics 24VAC transformer" up to to feed my C and RC wires. Once everything was installed it worked like a charm. The green LED is nice for troubleshooting so I know if the power is out at the outlet.
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Top reviews from the United States

Justin
5.0 out of 5 stars Great for Smart Thermostats with No Common!
Reviewed in the United States on November 27, 2017
Verified Purchase
I used this transformer to create a 24VAC "common" for my new Ecobee3 Lite smart thermostat. I just had a new Peerless Boiler installed and the hydrostat that was used did not have any low voltage common hookups. It had the standard 2x T hookups for the thermostat. I ran a new 18-5 wire from the thermostat to the boiler and used 2 for the R and W to hookup to both T and T at the hydrostat. I added a GFCI outlet at the on/off switch to hook this "MG Electrontics 24VAC transformer" up to to feed my C and RC wires. Once everything was installed it worked like a charm. The green LED is nice for troubleshooting so I know if the power is out at the outlet.
Customer image
Justin
5.0 out of 5 stars Great for Smart Thermostats with No Common!
Reviewed in the United States on November 27, 2017
I used this transformer to create a 24VAC "common" for my new Ecobee3 Lite smart thermostat. I just had a new Peerless Boiler installed and the hydrostat that was used did not have any low voltage common hookups. It had the standard 2x T hookups for the thermostat. I ran a new 18-5 wire from the thermostat to the boiler and used 2 for the R and W to hookup to both T and T at the hydrostat. I added a GFCI outlet at the on/off switch to hook this "MG Electrontics 24VAC transformer" up to to feed my C and RC wires. Once everything was installed it worked like a charm. The green LED is nice for troubleshooting so I know if the power is out at the outlet.
Images in this review
Customer image
Customer image
4 people found this helpful
Helpful
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Richard M. Vazquez
5.0 out of 5 stars Works well as power supply Heat only 2-wire boiler/furnace installations for ecobee thermostat
Reviewed in the United States on January 27, 2019
Verified Purchase
Heat only 2-wire boiler/furnace installations for ecobee thermostats
This article applies to the ecobee3, ecobee3 lite, and ecobee4

https://support.ecobee.com/hc/en-us/articles/227874667-Heat-only-2-wire-boiler-furnace-installations
Ecobee thermostats require a C (common) wire to power on.

If you only have two wires at your current thermostat, there are a few installation options available, depending on your application.
Customer image
Richard M. Vazquez
5.0 out of 5 stars Works well as power supply Heat only 2-wire boiler/furnace installations for ecobee thermostat
Reviewed in the United States on January 27, 2019
Heat only 2-wire boiler/furnace installations for ecobee thermostats
This article applies to the ecobee3, ecobee3 lite, and ecobee4

https://support.ecobee.com/hc/en-us/articles/227874667-Heat-only-2-wire-boiler-furnace-installations
Ecobee thermostats require a C (common) wire to power on.

If you only have two wires at your current thermostat, there are a few installation options available, depending on your application.
Images in this review
Customer image
Customer image
One person found this helpful
Helpful
 Report
Ricardo Merizalde
5.0 out of 5 stars Works for Google Nest wired (2nd gen) and electronic chime
Reviewed in the United States on April 24, 2023
Verified Purchase
I have an old intercom in my home and I wanted to trigger the electronic chime when someone rings the bell. My existing wire is 22 AWG so shouldn't exceed 0.92 amps. This transformer generates enough current to power the doorbell and the relay (which triggers the electronic chime). I initially bought a 10 VA transformer which was good enough for the doorbell but didn't generate enough current close the circuit of the relay.
Helpful
 Report
Javier R.
5.0 out of 5 stars Great replacement
Reviewed in the United States on July 5, 2023
Verified Purchase
Found this on Amazon for a timer on my water filtration system works as advertised. I especially like the green light letting me know it's getting power.
Helpful
 Report
David Blankenburg
4.0 out of 5 stars Well made but LED indicator light is way too bright
Reviewed in the United States on January 25, 2018
Verified Purchase
Needed to replace an transformer on a Christmas decoration and this had the same rating so I gave it a try. Well made and works for what I needed but the green LED light on the unit is VERY bright, even after I tried to cover it with tape so it wouldn't be seen. Also, the housing is a little larger than needed but since I'm not using it for it's intended purpose that may not matter to anyone else.
4 people found this helpful
Helpful
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rebecca martin
5.0 out of 5 stars Perfect product and price
Reviewed in the United States on April 1, 2023
Verified Purchase
Great price for exactly what I needed. Super simple installation, did myself!
Helpful
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Mr. Sleeper
5.0 out of 5 stars Transformer for EcoWater Water softener
Reviewed in the United States on May 23, 2022
Verified Purchase
It worked very well to replace the defective transformer for my water softener. It now has a green light that illuminates all the time. The light is kinda cool to have but you may wanna think about it if you are using the transformer in a bedroom or living room.
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Jonathan Ryan Horst
4.0 out of 5 stars Good product
Reviewed in the United States on January 10, 2017
Verified Purchase
For me to give a product 5 Stars it has to stick out Above the Rest this product got 4 stars because it works properly and the price was right. I have absolutely nothing negative to say about it but it does not stick out Above the Rest it is a good quality product and I would recommend it to others
2 people found this helpful
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