872-039

This high-quality 120V to 24V 40VA step-down transformer is a critical electrical component designed to provide reliable low-voltage power to your heating and cooling system's control circuits. By converting standard 120-volt household current into the 24-volt power required by thermostats, gas valves, and integrated furnace control boards, this transformer ensures your HVAC equipment operates safely and efficiently. It is a common replacement part for furnaces and air handlers where the existing transformer has failed due to power surges or electrical shorts. With its 40VA power rating, it offers ample capacity for modern multi-stage systems and smart thermostats, making it an essential part for maintaining consistent climate control in residential or light commercial applications.
Type: Electrical Transformer
Size: Standard 40VA
Application: Commonly used in HVAC systems, gas furnaces, and air conditioning units to provide low-voltage power to control boards, relays, and thermostats.
Specifications: Primary Voltage: 120V AC; Secondary Voltage: 24V AC; Power Rating: 40VA; Frequency: 50/60Hz; Configuration: Step-down