Aaon R77160 Differential Pressure Switch 0.45" WC SPST

The Aaon R77160 is a differential pressure switch designed for HVAC applications requiring precise air pressure monitoring and control. This switch activates at 0.45 inches water column (WC), making it ideal for filter monitoring, fan status verification, and airflow control in commercial heating and cooling systems.

Key Features:

• Differential pressure setpoint: 0.45" water column
• SPST (Single Pole Single Throw) contact configuration for straightforward on/off control
• Designed for HVAC air handling units and rooftop units
• Reliable pressure sensing for filter monitoring and airflow verification
• Genuine Aaon OEM replacement component

This differential pressure switch is commonly used to monitor filter conditions in air handlers, triggering alerts or shutdowns when filters become clogged and pressure differential exceeds the setpoint. The SPST contact design provides simple integration into control circuits for equipment protection and maintenance scheduling.