AT40A1139 Channel frame or foot mounted 240 Vac Transformer
SKU: AT40A1139/U
AT40A1139 Channel frame or foot mounted 240 Vac Transformer
SKU: AT40A1139/U
The AT20, AT40, AT72, AT87 and AT88 Transformers are step-down transformers used primarily for powering 24 Vac control systems. They can be used in any 24 Vac application that does not exceed the transformer volt-ampere (VA) rating.
Requires Pro for installation
This product must be installed by a qualified/licensed contractor and set up with properly calibrated test equipment. Failure to have the installation performed by a qualified professional could result in substantial property damage, and even severe personal injury or death, and Resideo will not be responsible for any damages or injuries resulting from not observing this warning.