Compact 24VAC 40VA Plug-in Transformer for Doorbells, Nest, Ecobee, Sensi and Honeywell Thermostats

The 24VAC 40VA Plug-in Transformer, Doorbell Transformer is a power solution designed to provide sufficient power for your thermostat and doorbell, thereby eliminating the need for frequent battery replacement. This transformer is compatible with various smart thermostats, including Honeywell, Nest, Ecobee, and Sensi, as well as video doorbells such as Video Doorbell, Video Doorbell 2, Video Doorbell Pro, and Nest Skybell Doorbell.

The transformer's input voltage is 120 VAC, 60Hz, and its output voltage is 24V, 40VA. The no-load output voltage is 26.6V, and it features a SAFE AND STABLE auto-resetting (PTC) fused secondary, as well as a green LED power indicator.

One of the key features of this transformer is its ease of installation. The output is equipped with screw terminals, allowing you to freely cut the connecting cable and arrange it according to your desired length, making the installation simple and visually appealing.

When using a multimeter to test the product, it is important to use an AC voltmeter or multimeter to measure the output voltage value accurately. The no-load voltage output measured by the multimeter is typically around 26.6-28V, which is normal and does not affect the functionality of the transformer.

In summary, the 24VAC 40VA Plug-in Transformer, Doorbell Transformer is a reliable and versatile power solution that can provide sufficient power for your thermostat and doorbell, while offering compatibility with a wide range of smart home devices and easy installation. The SAFE AND STABLE auto-resetting (PTC) fused secondary and green LED power indicator further enhance the product's safety and usability.

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