Bard 8406-086BX 0.35"WC SPDT Pressure Switch

The Bard 8406-086BX is a single-pole double-throw (SPDT) pressure switch designed for HVAC applications, specifically engineered to monitor air pressure differentials in heating and cooling systems. This pressure switch activates at 0.35 inches water column ("WC), making it ideal for verifying proper airflow and ensuring safe operation of furnaces and air handlers.

Key Features:

• SPDT switching configuration for versatile control applications
• 0.35"WC activation pressure for reliable low-pressure sensing
• Designed for use in Bard HVAC equipment and compatible systems
• Durable construction for long-term reliability in commercial and residential applications
• Functions as a safety device to prevent equipment operation under improper airflow conditions

This pressure switch is commonly used to detect blocked filters, failed blower motors, or other conditions that affect system airflow. When pressure drops below the setpoint, the switch changes state to signal the control board, preventing potential safety hazards or equipment damage.