Aaon R77150 0.25" WC SPST Pressure Switch

The Aaon R77150 is a single pole single throw (SPST) pressure switch designed for HVAC applications. This pressure switch is calibrated to activate at 0.25 inches water column (WC), making it ideal for monitoring low-pressure air systems in commercial heating, ventilation, and air conditioning equipment.

Key Features:

• 0.25" WC pressure activation setpoint for precise low-pressure monitoring
• SPST (Single Pole Single Throw) configuration for simple on/off switching
• Engineered specifically for Aaon HVAC equipment
• Reliable pressure sensing for airflow and static pressure applications
• Factory-calibrated for consistent performance

This pressure switch is commonly used as a safety or control device to verify proper airflow, detect filter blockage, or ensure adequate static pressure in ductwork. The SPST design provides straightforward electrical integration into control circuits.