Gas Transformer Primary Voltage 250 Volt AC Secondary Voltage 10000 Volt AC Frequency Rating 60 Hertz Terminal Type Rajah Connector Type Mid Point Ground, Ferromagnetic Junction Box Type Internal Number of Pole 2 Voltage Rating 120 Volt AC Loading Air Gap 1/8 to 3/16 Inch Temperature Rating -40 to 80 Deg C (Storage), -30 to 40 Deg F (Operating) Operating Relative Humidity 90 Percent Application Residential, Industrial, Commercial Gas Furnace Features / Benefits Designed with High Temperature Wire Runs Cooler, Quieter and Safer on All Types of Burner Single Porcelain Design Dependable Power