Bard 8402-033BX L140-25F HVAC Limit Switch

The Bard 8402-033BX is an OEM limit switch designed to protect HVAC heating equipment from overheating and potential damage. This safety control monitors supply air temperature and automatically interrupts the electrical circuit when temperatures exceed safe operating levels.

Key Features:

• L140-25F rating: opens at 140°F, automatically resets at approximately 115°F (25°F differential)
• Automatic reset design eliminates manual intervention and prevents nuisance lockouts
• Bimetal disc temperature control technology for reliable operation
• Protects heat exchangers, compressors, and cabinet components from thermal damage
• Direct OEM replacement for Bard HVAC equipment

This limit switch is typically installed in critical zones of HVAC systems such as supply air plenums or near heat exchangers. When temperature rises beyond the set point, the switch opens the control circuit to shut down the heating system, allowing components to cool safely before automatic reset occurs. Essential for maintaining equipment longevity and safe operation in residential and light commercial HVAC applications.