Carrier HH12ZB260 Limit Switch factory-calibrated response necessary to protect

factory-calibrated response necessary to protect the unit's cabinet and surrounding structure

technicians should check for 24VAC across the side terminals

Machined in the USA from premium brass (65% copper

Frequent tripping usually indicates poor combustion air supply

Enhanced System Protection: Integrated compressor lockout logic prevents short cycling

Carrier HH12ZB260 Limit Switch factory-calibrated response necessary to protectThe Carrier HH12ZB260 Limit Switch is a critical safety component engineered for precise thermal regulation in Carrier, Bryant, and Payne furnaces. This auto reset limit switch features a Normally Closed (NC) configuration, designed to break the electrical circuit when the plenum temperature reaches its 260F opening setpoint. Once the heat exchanger cools to the 220F closing temperature, the SPST (Single Pole Single Throw) switch automatically resets,