Resideo by Honeywell AT20B1056 120/24V 20VA Transformer with Conduit Nipple Mounting

The Resideo by Honeywell AT20B1056 is a reliable 20VA step-down transformer designed to convert 120VAC primary voltage to 24VAC secondary voltage for use in HVAC controls, thermostats, and other low-voltage applications. This transformer provides consistent power delivery for residential and light commercial heating and cooling systems.

Key Features:

• Input voltage: 120VAC, Output voltage: 24VAC
• Power rating: 20VA (volt-ampere) capacity
• Conduit nipple mounting design for secure installation
• 7-inch lead wires for flexible connection options
• Dual termination: screw terminals and quick-connect terminals for versatile wiring
• Class 2 rated transformer for safe low-voltage applications
• Thermal overload protection prevents damage from overcurrent conditions

This UL-listed transformer is ideal for replacement applications in furnaces, air handlers, and boiler systems. The conduit nipple mounting allows for easy installation directly to an electrical box or knockout opening, while the generous 7-inch leads provide ample wire length for making connections. The combination of screw terminals and quick-connects ensures compatibility with various wiring methods commonly found in HVAC installations.