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Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse

4.5 out of 5 stars 672 ratings

Was: $26.95 Details
Price: $15.31
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  • Input Voltage: 120 VAC, 60Hz, .43A, Output Voltage: 24 Volts A.C.
  • Auto-Resetting (PTC) Fused Secondary
  • Green Power On LED, Grounding Prong & Terminal
  • Electrical outlet mounting tab
  • H = 4.14-Inch, W=2.74-Inch, D = 2.2-Inch.
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    Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse
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    Customer Rating 4.5 out of 5 stars (672) 4.6 out of 5 stars (742) 4.5 out of 5 stars (83) 4.5 out of 5 stars (146) 4.5 out of 5 stars (294) 4.6 out of 5 stars (454)
    Price $15.31 $17.50 $25.99 $15.00 $15.81 $21.00
    Sold By YESCO Electrical Supply inconsupply Zbeem Power Supply Center SupplyEdge Maintak
    Item Dimensions 2.74 x 2.2 x 4.14 inches 1 x 0.5 x 1 inches 3.5 x 2.5 x 3.25 inches 3 x 2.1 x 2 inches 2.25 x 3.25 x 2 inches 4.9 x 5.4 x 4.5 inches
    Item Weight 1.39 lbs 1.00 lbs 1.00 lbs 1.00 lbs 1.26 lbs 1.80 lbs

    Product description

    Package Quantity:1  |  Color:White

    Elk 24 VAC 40 VA resetting transformer

    Product information

    Package Quantity:1  |  Color:White

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here

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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    672 global ratings
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    Top reviews from the United States

    Reviewed in the United States on July 23, 2017
    Package Quantity: 1Color: WhiteVerified Purchase
    69 people found this helpful
    Report abuse
    Reviewed in the United States on April 7, 2018
    Package Quantity: 1Color: WhiteVerified Purchase
    Customer image
    5.0 out of 5 stars I installed this Elk 24v transformer 3 months ago to use with Ring Video Doorbell 2. It is doing the trick perfectly.
    By J Christensen on April 7, 2018
    Item being reviews: Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse
    I installed this 3 months ago to use with Ring Video Doorbell 2. It is doing the trick perfectly.

    In the posted picture you can see the Elk device and a resistor that I attached to the side to comply with Ring requirements.

    The Ring Video Doorbell 2 says that the battery can last about 3-12 months depending on how much motion is involved and how far you set the motion sensor to detect. It says if motion is high than it will last less than 3 months. Sure enough, my battery was fully charged when installed, then died within 2 weeks of my high motion location uploading a video every minute to the Ring cloud. So I bought this Elk 24v transformer. The ring documentation says that you must purchase a 25 ohm resistor. So I bought the following resistor to work with this Elk device:
    Uxcell a12050500ux0030 Aluminum Case 50W 25 Ohm Chassis Mounted Wirewound Resistor

    After 3 months of sending 1000's of video recordings to the Ring cloud I am happy to report that this device is keeping the battery at 99% and the Ring device has not reported any failure from the Power Source, it has report of Power Status of "Very Good" which means it is fully charged and the correct voltage.
    Images in this review
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    14 people found this helpful
    Report abuse
    Reviewed in the United States on November 30, 2017
    Package Quantity: 1Color: WhiteVerified Purchase
    Customer image
    5.0 out of 5 stars Adding C Wire for Smart Thermostat (Heat Only Furnace)
    By Ben M on November 30, 2017
    I have a heat only boiler with radiators and wanted to add a nest thermostat. My furnace had white and red wires running from it to the old thermostat, so I ran a new 5 wire thermostat wire and replaced the red and white wires exactly as they were on the furnace. I then connected my yellow and blue wires to the terminals on this transformer. The green wire was not used in any way, and the ground terminal on this transformer was not used. On the nest thermostat, my red cable went to Rh, white to W1, blue to C, and yellow to Rc. This powered my nest thermostat perfectly. Another reviewer mentioned this setup as well, and I would like to thank him for helping with my installation.
    Images in this review
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    13 people found this helpful
    Report abuse
    Reviewed in the United States on August 3, 2019
    Package Quantity: 1Color: WhiteVerified Purchase
    3 people found this helpful
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    Top reviews from other countries

    Amazon Customer
    5.0 out of 5 stars Justo lo Requerido
    Reviewed in Mexico on September 2, 2020
    Package Quantity: 1Color: WhiteVerified Purchase
    Kindle Customer
    5.0 out of 5 stars Functions perfectly as advertised
    Reviewed in Canada on December 17, 2019
    Package Quantity: 1Color: WhiteVerified Purchase
    Nick Cardone
    5.0 out of 5 stars Great for RingPro Doorbell
    Reviewed in Canada on June 4, 2018
    Package Quantity: 1Color: WhiteVerified Purchase
    One person found this helpful
    Report abuse
    Viateur gagnon
    5.0 out of 5 stars Fonctionne très bien
    Reviewed in Canada on February 15, 2020
    Package Quantity: 1Color: WhiteVerified Purchase
    Ciccio
    5.0 out of 5 stars Pricey but work perfectly
    Reviewed in Canada on April 17, 2018
    Package Quantity: 1Color: WhiteVerified Purchase