Carrier HH12ZB240 Limit Switch Specifically designed for versatility

Specifically designed for versatility

and P331-2206

while the 306800 (FS7-28S) uses stainless steel paddles for corrosive environments or specialized "S" model switches

preventing total system failure during minor electrical transients

Carrier HH12ZB240 Limit Switch Specifically designed for versatilityThe Carrier HH12ZB240 is a high limit OEM replacement part engineered for precise thermal regulation and safety in Carrier, Bryant, and Payne gas furnaces. As a normally closed (NC) switch, it is designed to protect the heat exchanger from damage caused by restricted airflow or blower failure. This auto limit switch functions on a specific thermal cycle, opening the circuit when internal temperatures reach 240F to interrupt the gas valve and closing