Bard HVAC 8402-019 Fuse Link 128°C

The Bard HVAC 8402-019 Fuse Link is a temperature-responsive part designed to break electrical continuity when the surrounding area reaches 128C, stopping further operation of connected equipment. It is used in furnace and rooftop unit assemblies where airflow or burner zones require temperature-based circuit interruption. In HVAC systems, it is installed in Bard packaged units and similar heating equipment to disconnect power during abnormal heat rise within duct sections or combustion compartments and ensure the system remains inactive until the condition is corrected.