020-497

This high-performance differential pressure switch is a vital safety and monitoring component designed for commercial and industrial HVAC systems. Functioning as an air proving switch, it accurately detects the pressure difference between two points to ensure optimal airflow and system integrity. By monitoring the pressure drop across filters or verifying fan operation, this switch prevents the system from engaging under unsafe conditions, such as a blocked flue or a failed blower motor. It is a critical replacement part for maintaining the efficiency and safety of air handling units, furnaces, and ventilation systems. Engineered for reliability, this sensor helps prevent equipment damage and ensures consistent climate control performance.
Type: Air Pressure Switch / Air Proving Switch
Size: Standard HVAC control component
Application: Used in commercial air handlers, rooftop units, furnace ventilation systems, and industrial climate control applications to monitor airflow and prove fan operation.
Specifications: Differential pressure sensing range: -40 to 15; designed for air and non-combustible gas monitoring; high-reliability contact switching for safety circuit integration.