
TR440100 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $79.99 | Condition is New – Open box, Flair TR440100 Relay Transformer 120/23VAC, FREE SHIPPING | 100.0% |
![]() | $89.98 | Condition is New – Open box, Flair TR440100 Relay Transformer 120/24 VAC 40 VA, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $39.95 | Top Pick! Condition is Used, Flair TR440100 Single Zone Relay Transformer 120/24 VAC 40 VA Taco Equivalent, shipping cost = $8.95 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $74.99 | Condition is Open box, Flair TR440100 Transformer Relay, FREE SHIPPING | 100.0% |

The Flair TR440100 Relay Transformer is a versatile and essential component for various heating applications. This transformer is specifically designed for use with burners and circulators that operate on 120/24 volts AC and have a maximum VA rating of 40 and a millivoltage requirement.
The transformer's primary function is to step down the voltage from the electrical supply to a level suitable for the burner or circulator. It features a 40VA (Volts-Amperes) capacity, which is the maximum electrical power the transformer can handle. This makes it suitable for use with small to medium-sized heating appliances.
The TR440100 is a relay transformer, which means it is designed to work with a relay switch. The relay switch allows for automatic or manual control of the heating element. The transformer is equipped with a secondary winding that provides the required millivoltage to the relay, enabling it to operate efficiently.
The transformer is constructed with high-quality materials, ensuring durability and long-lasting performance. The insulation is made of a heat-resistant material, making it suitable for use in heating applications. The transformer also features a protective cover that shields the internal components from dust, moisture, and other external elements.
The Flair TR440100 Relay Transformer is easy to install and can be mounted on a wall or other suitable surface using the provided mounting brackets. It also comes with terminal screws and wiring connectors, making the wiring process straightforward and hassle-free.
In summary, the Flair TR440100 Relay Transformer is a reliable and efficient solution for powering burners and circulators that require a specific voltage and millivoltage level. Its compact design, easy installation, and high-quality construction make it an excellent choice for both residential and commercial heating applications.
The Flair TR440100 relay transformer burner/circulator is a crucial component in heating systems that use relay switches and millivoltage controls. Here are some pros and cons that can help you decide whether to purchase this relay transformer.
Pros:1. Compatibility: This transformer is designed to work with Flair's millivoltage control systems, making it an ideal choice for those using Flair heating equipment.
2. Efficiency: The transformer's 40VA rating indicates that it can handle a reasonable load, ensuring efficient operation of the heating system.
3. Durability: Flair is known for manufacturing high-quality heating components, and this transformer is no exception. It is built to withstand the rigors of continuous use in heating applications.
4. Safety: The transformer is designed with safety in mind, featuring a protective coating and proper insulation to prevent electrical hazards.
Cons:1. Limited Compatibility: Since this transformer is specifically designed for use with Flair's millivoltage control systems, it may not be suitable for other heating systems.
2. Size: The transformer may be larger than some users anticipate, requiring additional space for installation.
3. Cost: Compared to some other transformers on the market, the Flair TR440100 may be more expensive.
In conclusion, the Flair TR440100 relay transformer burner/circulator is a reliable and efficient choice for those using Flair heating systems. Its compatibility with Flair control systems, durability, and safety features make it a worthwhile investment. However, its limited compatibility with other systems and higher cost may deter some buyers.
If you're certain that your heating system is compatible with this transformer and you're willing to invest in a high-quality component, the Flair TR440100 is an excellent choice. However, if you're looking for a more budget-friendly option or your heating system uses a different control system, you may want to explore other transformer options.
Details:
And the cost of return shipping. Model TR440100. Ask our experts. Country of manufactures.
Conditioner/other. Shipping dimensions: length 10 in. Part numbertr440100. Items in lot1.
specifications maxohvac:
- brand: Flair
- mpn: Tr440100
- part type: Transformer Burner
seller maxohvac:
- rating: 99.9%
- city: millersburg, indiana
- # reviews: 14730
offer maxohvac:
- started: october 30, 2025
- prices: $39.95–$89.98
- item condition:
- New – Open box
- Used
- Open box
- options: ship-to-home
- sold #: 14
- in stock #: 4
- best offers: true
- availability: in stock
shipping maxohvac:
- class: expedited
- transit: 2-5 days
- service: expedited
- type: fixed
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- paid by: buyer
- policy: returns accepted
- method: money back
- time: 30 days
payments maxohvac:
- credit card: diners-club
- other
- wallet: paypal



