Bard 8402-020BX Limit Control 135°F High Limit Switch

The Bard 8402-020BX is an OEM limit control designed to protect Bard HVAC heating equipment from overheating by monitoring supply air temperature and opening the electrical circuit when excessive temperatures are detected. This automatic reset limit switch is calibrated to open at approximately 135°F and reclose when temperatures drop back to around 120°F, providing a 15-degree differential for reliable safety operation.

Key Features:

• Opens circuit at 135°F to prevent overheating damage
• Automatic reset design recloses at approximately 120°F
• OEM replacement part for Bard wall mount and packaged HVAC units
• Critical safety component for electric heat and air handler sections
• Helps prevent heat exchanger damage and equipment failure

This limit control is essential for maintaining safe operation in Bard heating systems. If your unit is experiencing high limit trips, short cycling on heat, or shows signs of restricted airflow, replacing a faulty or out-of-calibration limit switch with the correct Bard 8402-020BX can restore proper safety protection and reliable performance. Verify compatibility with your specific Bard model before installation.