Description
The Trane CNT03781 Auto Reset Limit Switch is a temperature-actuated control to monitor heat levels in heating equipment and interrupt operation when internal temperatures reach approximately 180F. It automatically resets once temperatures fall back to safe levels, allowing the system to resume normal cycling without manual intervention. In HVAC systems, it is commonly used in furnaces and rooftop units where it is mounted near heat-producing sections or airflow paths. The switch acts as a control component regulating operating conditions by responding to excessive heat and maintaining temperature limits during heating operation.
