Carrier HH12ZB330 Auto Limit Switch 300°F-330°F

The Carrier HH12ZB330 is an Auto Limit Switch, a safety necessity that is made for Carrier HVAC systems which are usually furnaces. The switch is original in that this vital switch protects the furnace from achieving high temperatures by cutting off power for the burner if the furnace temperature goes up to a safety limit of between 300°F and 330°F. A small switch with a spring-loaded mechanism and a temperature-sensitive coil inside, irregular in shape to assures compatibility with the Carrier units that are designated. The simplest function that can be beneficial in avoiding damage to the Carrier HVAC system and the safety of the home is an automatic shut off of the burner in high-temperature conditions.