Sterling HVAC 11J11R02682 High Limit Switch

The Sterling HVAC 11J11R02682 High Limit Switch is a temperature safety control that interrupts an electrical circuit when excessive heat reaches its preset threshold. A heat sensitive element responds to rising temperature and changes the internal contact state, stopping the connected activity when the limit is exceeded. After conditions return to an acceptable range, the switching mechanism can restore circuit continuity according to its configuration. The control connects with the associated safety and operating circuitry in HVAC systems, allowing thermal conditions to influence the unit's electrical sequence. In heating applications, it provides over-temperature protection for combustion and air-moving sections as the heating process continues.