120-709

This premium 120V to 24V step-down transformer is a critical electrical component designed to power the low-voltage control circuits in residential and commercial HVAC systems. By converting standard 120-volt household current into the 24-volt power required by thermostats, gas valves, and integrated furnace control boards, this part ensures your heating and cooling equipment operates reliably. It is a common replacement part for furnaces, air conditioners, and heat pumps when the system fails to engage or the thermostat loses power. Built for durability and consistent voltage output, it helps protect sensitive electronic components from power fluctuations and provides the necessary energy for relays and contactors.
Type: Electrical Step-Down Transformer
Size: Standard HVAC chassis mount
Application: Used primarily in furnaces, air handlers, and central air conditioning systems to provide low-voltage power to thermostats, ignition modules, and control relays.
Specifications: Input Voltage: 120V AC; Output Voltage: 24V AC; Function: Power conversion for HVAC control systems; Type: Class 2 Transformer.