24V 40VA Control Transformer, Primary 120, 208, 240V Secondary 24V Isolation Transformers,24V Transformer with Foot Mount for HVAC Furnace Multi Tap
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24V 40VA Control Transformer, Primary 120, 208, 240V Secondary 24V Isolation Transformers,24V Transformer with Foot Mount for HVAC Furnace Multi Tap

4.5/5
Product ID: 497110965
Secure Transaction
12 interest-free installments with tabby

Details

  • Brand
    WUYELIN
  • Power Source
    AC
  • Product Dimensions
    2.04"D x x
  • Mounting Type
    Rack Mount
  • Current Rating
    1.66 Amps
40 VA Power Rating
🔌Multi-Tap Compatibility
🔒Isolation Transformer

Description

🔧 Transform Your Power Game!

  • IDEAL FOR HVAC - Perfectly suited for heating and air conditioning controls.
  • PRECISION TESTED - No-load voltage tested at AC26.6V-27.5V for accuracy.
  • FOOT MOUNT DESIGN - Easy installation with a convenient foot mount feature.
  • VERSATILE VOLTAGE - Supports primary voltages of 120/208/240 V AC for diverse applications.
  • POWERFUL PERFORMANCE - Delivers a robust 40 VA for reliable operation.

The 24V 40VA Control Transformer is a versatile and reliable solution for HVAC systems, offering multiple primary voltage options and a robust power rating, ensuring seamless operation in various industrial applications.

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Reviews

4.5

All from verified purchases

M**E

EXPLOSIONS AND FIRE (solved)

UPDATE 6/5/25: I noticed that the seller has used these diagrams to provide input wiring instructions in their product photos. I will assume that they have updated their paper instructions as well. Therefore I am upgrading this to a 5 star product.--------------------------Several reviewers have posted about these transformers blowing up / catching fire / burning out after a short period of use. Since the wiring instructions that came with the product were equally as helpful as the product photos, I am sharing what I have learned after instantly blowing up this transformer and having it catch fire.Initially I wired this transformer as follows: White-Neutral, Black-120v, Orange-120v. I immediately discovered that I was wrong.I was able to communicate with the seller using diagrams and they said that this transformer is designed to only use a Neutral on White and a single Hot on either Black or Red or Orange, depending on the voltage of the Hot wire. See photos noted "according to seller"TBH I don't think the seller is entirely correct because although 220V Hot legs are standard for residential power in Europe and China, I am unaware of any single-Hot 208V power system anywhere in the world. You get 208V from two 120V Hot legs that are 120 degrees out of phase from each other.Theoretically you should be able to power this transformer at 240V or 208V in the USA without a Neutral by using two out-of-phase Hot wires, with one of the Hots going to the White wire on the transformer (see photos noted "UNTESTED"). However, your best option is to just wire the transformer for 120V whenever possible.As for the product, minus 2 stars for poor wiring instructions and plus one star for excellent customer service. The build quality looks and feels good. If they update their product photos and paper instructions with clear and simple wiring diagrams for supplying each voltage in the USA then I will give it 5 stars. Regardless, I would definitely buy from this seller again.

R**N

Transformer

Build quality was great easy to install voltage was correct. Didn’t get hot

J**X

Good

Good

L**A

Good

Good

C**J

Perfect To Isolate HVAC UV Lights

Hooked this up to 220 to isolate and power my 2 HVAC UV lights. Exactly what I needed.

T**R

Do not recommend purchasing…

The transformer I received was not as advertised or described, it looks used and the leads were cut down to about 1”.

D**S

Good price, durable product

Good functioning product, bought this transformer for a project I was working on. I did not expect a high quality long lasting transformer but this item exceeded my expectations.

C**S

Works great

No problem with this transformer. Replaced the one in my heat pump air handler.The original had been humming for years and finally died.The wire colors are different from standard as is the case with most china transformers.The voltage info needed to hook it up is clearly printed on the label.The printed paper diagram was generic and useless for my purposes .Item shipped fairly quick so no problems there.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Secure Transaction
12 interest-free installments with tabby

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

24v 40va Control Transformer Primary 120 208 240v Secondary 24v | Desertcart UAE