Resideo by Honeywell AT140A1000 40VA Transformer 120V to 24V with Multiple Mounting Options

The Resideo by Honeywell AT140A1000 is a versatile 40VA transformer designed for HVAC control systems and other low-voltage applications. This reliable Class 2 transformer converts standard 120VAC primary voltage to 24VAC secondary voltage, providing consistent power for thermostats, zone controls, and various building automation components.

Key Features:

• 40VA power capacity suitable for most residential and light commercial HVAC systems
• 120VAC primary voltage to 24VAC secondary voltage conversion
• Multiple mounting options: plate mount, foot mount, or knockout mount for flexible installation
• Class 2 transformer design meets NEC requirements for low-voltage wiring
• Thermal protection prevents overheating and extends service life
• Compact design fits easily in furnaces, air handlers, and electrical enclosures
• UL listed for safety and reliability

This transformer is ideal for powering thermostats, humidifiers, electronic air cleaners, and other 24VAC accessories in residential and commercial HVAC applications. The versatile mounting configuration allows for easy installation in tight spaces or standard electrical panels.