Universal Round Form Factor: Standard 2-inch diameter and 4

The 24V coil and high-amperage contacts are built for fan center switching in furnaces

ensuring matched electrical specs for HST compressor motors

maintaining the original unit's safety certification

Ensure a solid 24V signal is reaching the coil

Bard HVAC 8402-074BX Limit Switch Universal Round Form Factor: StandardThe Bard HVAC 8402 074BX Limit Switch is a critical high limit safety control engineered for Bard wall mount and packaged units. As an OEM L170 7F limit switch, this component is designed to break the heating circuit if internal temperatures reach a 170F threshold, protecting the heat exchanger and blower assembly from thermal damage. This model features a manual reset mechanism, requiring a technician to physically inspect the system and clear the