Carrier HH18HA187 Limit Switch Industrial Durability: Rated for severe

Industrial Durability: Rated for severe operating temperatures (-30°F to 140°F) and built with a split-bobbin design for enhanced safety

Built with high-grade metallized polypropylene film

Field Ready: The 5-foot length and included compression fitting allow for immediate installation and custom sizing on the job site

veterans recommend replacing the gasket every time the steam trap cover is removed for cleaning or repair

Carrier HH18HA187 Limit Switch Industrial Durability: Rated for severeThe Carrier HH18HA187 Limit Switch is a critical OEM replacement part designed for high limit safety monitoring in residential and commercial gas furnaces. This SPST normally closed disc style switch features a fixed 180 degree open setpoint and a 80 degree close reset point, ensuring the heat exchanger does not exceed safe operating temperatures. Engineered for automatic reset functionality, the HH18HA187 integrates seamlessly into the safety string