Carrier 110000272 Limit Switch 340155-7026 handle the ceramic base only

handle the ceramic base only and keep the element clear of skin oils and drywall dust

consider the required Cv

meaning it restores continuity once the internal temperature drops back to a safe operating level

Normally closed means the valve remains shut and prevents gas flow when de-energized

Carrier 110000272 Limit Switch 340155-7026 handle the ceramic base onlyThe Carrier 110000272 Limit Switch is a critical high limit safety component engineered for precise thermal regulation in Carrier, Bryant, and Payne heating systems. This OEM replacement part is calibrated as an L165 40F limit switch, meaning the internal contacts are designed to open at 165F to prevent heat exchanger damage and automatically reset once the temperature drops to 40F. Featuring a robust snap action mechanism and a double break contact