Utica-Dunkirk 240008782 120V Primary 24V Secondary 50VA Transformer

Description

The Utica-Dunkirk 240008782 is a purpose-built HVAC control transformer designed to deliver consistent, low-voltage power to heating and cooling control circuits. Stepping down a 120V primary supply to a 24V secondary output at a 50VA capacity, this transformer is an essential component for maintaining reliable operation of thermostats, zone controls, gas valves, and other 24V control devices in boiler and hydronic heating systems.

Key Specifications

• Primary Voltage: 120V
• Secondary Voltage: 24V
• VA Rating: 50VA
• Brand: Utica-Dunkirk
• Part Number: 240008782

Product Highlights

• Engineered as a genuine OEM replacement for compatible Utica-Dunkirk boiler and heating systems
• 50VA capacity provides ample power for 24V control circuits including thermostats, relays, and zone valves
• Steps down standard 120V line voltage to the 24V signal voltage required by most HVAC control components
• Designed for dependable, long-term performance in demanding residential and light commercial heating applications
• Direct OEM replacement ensures proper fit and function without modification

Application

This transformer is commonly used in Utica-Dunkirk boiler systems to power low-voltage control circuits. Proper transformer function is critical to system reliability — a failed or undersized transformer can cause erratic thermostat behavior, control lockouts, or complete system shutdown. Replacing with the correct OEM part ensures your system operates within factory specifications.